Chandra Wickramasinghe

Short description: British astronomer (born 1939)

Chandra Wickramasinghe

MBE

Wickramasinghe at the University of Buckingham

Born|  (1939-01-20) 20 January 1939 (age 87)
Nationality| British
Alma mater|

* Royal College, Colombo
* University of Ceylon (BSc)
* Cambridge University (PhD, ScD)

Known for| Organic composition of cosmic dust
Awards| Fellow of Jesus College, Cambridge University (1963-1973)
Vidya Jyothi (1992)
Scientific career
Fields|

* Astrobiology
* Astronomy
* Mathematics

Institutions|

* Cambridge University
* University College Cardiff
* University of Cardiff
* University of Buckingham
* University of Ruhuna

Doctoral advisor| Fred Hoyle

Nalin Chandra Wickramasinghe MBE (born 20 January 1939) is a Sri Lankan-born British mathematician, astronomer[1] and astrobiologist of Sinhalese ethnicity. His research interests include the interstellar medium, infrared astronomy, light scattering theory, applications of solid-state physics to astronomy, the early Solar System, comets, astrochemistry, the origin of life and astrobiology. A student and collaborator of Fred Hoyle, the pair worked jointly for over 40 years[2] as influential proponents of panspermia.[3][4] In 1974 they proposed the hypothesis that some dust in interstellar space was largely organic, later proven to be correct.[5][6][7]

Wickramasinghe has advanced numerous fringe claims, including the argument that various outbreaks of illnesses on Earth are of extraterrestrial origins, including the 1918 flu pandemic and certain outbreaks of polio and mad cow disease. For the 1918 flu pandemic they hypothesised that cometary dust brought the virus to Earth simultaneously at multiple locations—a view almost universally dismissed by experts on this pandemic.[8] Claims connecting terrestrial disease and extraterrestrial pathogens have been rejected by the scientific community.[8]

Wickramasinghe has written more than 40 books about astrophysics and related topics;[9] he has made appearances on radio, television and film, and he writes online blogs and articles. He has appeared on BBC Horizon, UK Channel 5 and the History Channel. He appeared on the 2013 Discovery Channel program "Red Rain".[10][11] He has an association with Daisaku Ikeda, president of the Buddhist sect Soka Gakkai International, that led to the publication of a dialogue with him, first in Japanese and later in English, on the topic of Space and Eternal Life.[12]

## Contents

* 1 Education and career
* 2 Research
* 2.1 Organic molecules in space
* 2.2 Hoyle–Wickramasinghe model of panspermia
* 2.3 Detection of living cells in the stratosphere
* 2.4 Extraterrestrial pathogens
* 2.5 Polonnaruwa
* 2.6 Cephalopod alien origin
* 3 Participation in the creation-evolution debate
* 4 Honours and awards
* 5 Books
* 6 Articles
* 7 See also
* 8 References
* 9 External links

## Education and career

Wickramasinghe studied at Royal College, Colombo, the University of Ceylon (where he graduated in 1960 with a BSc First Class Honours in mathematics), and at Trinity College and Jesus College, Cambridge, where he obtained his PhD and ScD degrees.[13] Following his education, Wickramasinghe was a Fellow of Jesus College, Cambridge from 1963 to 1973, until he became professor of applied mathematics and astronomy at University College Cardiff. Wickramasinghe was a consultant and advisor to the President of Sri Lanka from 1982 to 1984, and played a key role in founding the Institute of Fundamental Studies in Sri Lanka.

After fifteen years at University College Cardiff, Wickramasinghe took an equivalent position in the University of Cardiff, a post he held from 1990 until 2006.[14] After retirement in 2006, he incubated the Cardiff Center for Astrobiology as a special project reporting to the president of the university. In 2011 the project closed down, losing its funding in a series of UK educational cut backs. After this event, Wickramasinghe was offered the opportunity to move to the University of Buckingham as Director of the Buckingham Centre for Astrobiology, University of Buckingham where he has been since 2011. He maintains his part-time position as a UK Professor at Cardiff University. In 2015 he was elected Visiting scholar, Churchill College, Cambridge, England 2015/16.[15]

He is a co-founder and board member of the Institute for the Study of Panspermia and Astroeconomics, set up in Japan in 2014,[16] and the Editor-in-Chief of the Journal of Astrobiology & Outreach. He was a Visiting By-Fellow, Churchill College, Cambridge, England 2015/16;[15] Professor and Director of the Buckingham Centre for Astrobiology at the University of Buckingham, a post he has held since 2011;[9] Affiliated Visiting Professor, University of Peradeniya, Sri Lanka;[17] and a board member and research director at the Institute for the Study of Panspermia and Astroeconomics, Ogaki-City, Gifu, Japan.[18]

In 2017, Professor Chandra Wickramasinghe was appointed adjunct professor in the Department of Physics, at the University of Ruhuna, Matara, Sri Lanka.[19]

## Research

In 1960 he commenced work in Cambridge on his PhD degree under the supervision of Fred Hoyle, and published his first scientific paper "On Graphite Particles as Interstellar Grains” in Monthly Notices of the Royal Astronomical Society in 1962.[20] He was awarded a PhD degree in mathematics in 1963 and was elected a Fellow of Jesus College Cambridge in the same year. In the following year he was appointed a Staff Member of the Institute of Astronomy, Cambridge. Here he continued to work on the nature of interstellar dust, publishing many papers in this field,[21] that led to a consideration of carbon-containing grains as well as the older silicate models.

Wickramasinghe published the first definitive book on Interstellar Grains in 1967.[22] He has made many contributions to this field, publishing over 350 papers in peer-reviewed journals, over 75 of which are in Nature. Hoyle and Wickramasinghe further proposed a radical kind of panspermia that included the claim that extraterrestrial life forms enter the Earth's atmosphere and were possibly responsible for epidemic outbreaks, new diseases, and genetic novelty that Hoyle and Wickramasinghe contended was necessary for macroevolution.[23]

Chandra Wickramasinghe had the longest-running collaboration with Fred Hoyle. Their publications on books and papers[21] arguing for panspermia and a cosmic hypothesis of life are controversial and, in particular detail, essentially contra the scientific consensus in both astrophysics and biology. Several claims made by Hoyle and Wickramasinghe between 1977 and 1981, such as a report of having detected interstellar cellulose, were criticised by one author as pseudoscience.[24] Phil Plait has described Wickramasinghe as a "fringe scientist" who "jumps on everything, with little or no evidence, and says it’s from outer space".[25]

### Organic molecules in space

In 1974 Wickramasinghe first proposed the hypothesis that some dust in interstellar space was largely organic,[26] and followed this up with other research confirming the hypothesis.[27] Wickramasinghe also proposed and confirmed the existence of polymeric compounds based on the molecule formaldehyde (H2CO).[28] Fred Hoyle and Wickramasinghe later proposed the identification of bicyclic aromatic compounds from an analysis of the ultraviolet extinction absorption at 2175A.,[29] thus demonstrating the existence of polycyclic aromatic hydrocarbon molecules in space.

### Hoyle-Wickramasinghe model of panspermia

Throughout his career, Wickramasinghe, along with his collaborator Fred Hoyle, has advanced the panspermia hypothesis, that proposes that life on Earth is, at least in part, of extraterrestrial origin.[30][31] The Hoyle-Wickramasinghe model of panspermia include the assumptions that dormant viruses and desiccated DNA and RNA can survive unprotected in space;[32] that small bodies such as asteroids and comets can protect the "seeds of life", including DNA and RNA,[33][34][35] living, fossilized, or dormant life, cellular[36][37] or non-cellular;[33][34][35][36][38][39][40][41] and that the collisions of asteroids, comets, and moons have the potential to spread these "seeds of life" throughout an individual star system and then onward to others.[38][41] The most contentious issue around the Hoyle-Wickramasinghe model of the panspermia hypothesis is the corollary of their first two propositions that viruses and bacteria continue to enter the Earth's atmosphere from space, and are hence responsible for many major epidemics throughout history.[42][43][44]

Towards the end of their collaboration, Wickramasinghe and Hoyle hypothesised that abiogenesis occurred close to the Galactic Center before panspermia carried life throughout the Milky Way,[45] and stated a belief that such a process could occur in many galaxies throughout the Universe.[46][47]

### Detection of living cells in the stratosphere

An image of a clump of microorganisms from 41 km fluorescing on application of a carbocyanine dye (indicating viability) is shown in the left panel, and scanning electron microscope image of a similar clump is shown on the right panel.

On 20 January 2001 the Indian Space Research Organisation (ISRO) conducted a balloon flight from Hyderabad, India to collect stratospheric dust from a height of 41 km (135,000 ft) with a view to testing for the presence of living cells. The collaborators on this project included a team of UK scientists led by Wickramasinghe. In a paper presented at a SPIE conference in San Diego in 2002 the detection of evidence for viable microorganisms from 41 km above the Earth's surface was presented.[48] However, the experiment did not present evidence as to whether the findings are incoming microbes from space rather than microbes carried up to 41 km from the surface of the Earth.

In 2005 the ISRO group carried out a second stratospheric sampling experiment from 41 km altitude and reported the isolation of three new species of bacteria including one that they named Janibacter hoylei sp.nov. in honour of Fred Hoyle.[49] However, these facts do not prove that bacteria on Earth originated in the cosmic environment. Samplings of the stratosphere have also been carried out by Yang et al. (2005,[50] 2009[51]). During the experiment strains of highly radiation-resistant Deinococcus bacterium were detected at heights up to 35 km. Nevertheless, these authors have abstained from linking these discoveries to panspermia. Wickramasinghe was also involved in coordinating analyses of the red rain in Kerala in collaborations with Godfrey Louis.[52]

### Extraterrestrial pathogens

Hoyle and Wickramasinghe have advanced the argument that various outbreaks of illnesses on Earth are of extraterrestrial origins, including the 1918 flu pandemic and certain outbreaks of polio and mad cow disease. For the 1918 flu pandemic they hypothesised that cometary dust brought the virus to Earth simultaneously at multiple locations—a view almost universally dismissed by external experts on this pandemic.[8]

On 24 May 2003 The Lancet published a letter from Wickramasinghe,[53] jointly signed by Milton Wainwright and Jayant Narlikar, in which they hypothesised that the virus that causes severe acute respiratory syndrome (SARS) could be extraterrestrial in origin instead of originating from chickens. The Lancet subsequently published three responses to this letter, showing that the hypothesis was not evidence-based, and casting doubts on the quality of the experiments referenced by Wickramasinghe in his letter.[54][55][56] Claims connecting terrestrial disease and extraterrestrial pathogens have been rejected by the scientific community.[8]

In 2020, Wickramasinghe and colleagues published a paper claiming that Severe acute respiratory syndrome coronavirus 2, the virus responsible for the COVID-19 pandemic was also of extraterrestrial origin, the claim was criticised for lacking evidence.[57]

### Polonnaruwa

On 29 December 2012 a green fireball was observed in Polonnaruwa, Sri Lanka.[58][59] It disintegrated into fragments that fell to the Earth near the villages of Aralaganwila and Dimbulagala and in a rice field near Dalukkane. Rock samples were submitted to the Medical Research Institute of the Ministry of Health in Colombo.[citation needed]

The rocks were sent to the University of Cardiff in Wales for analysis, where Chandra Wickramasinghe's team analyzed them and claimed that they contained extraterrestrial diatoms. From January to March 2013, five papers were published in the fringe Journal of Cosmology outlining various results from teams in the United Kingdom, United States and Germany.[60][failed verification][61][failed verification] However, independent experts in meteoritics stated that the object analyzed by Wickramasinghe's team was of terrestrial origin,[62][63] a fulgurite created by lightning strikes on Earth.[64] Experts in diatoms complemented the statement, saying that the organisms found in the rock represented a wide range of extant terrestrial taxa, confirming their earthly origin.[62]

Wickramasinghe and collaborators responded, using X-ray diffraction, oxygen isotope analysis, and scanning electron microscope observations, in a March 2013 paper asserting that the rocks they found were indeed meteorites,[65] instead of being created by lightning strikes on Earth as stated by scientists from the University of Peradeniya.[64][66] However, these claims were also criticised for not providing evidence that the rocks were actually meteorites.[67]

### Cephalopod alien origin

In 2018, Wickramasinghe and over 30 other authors published a paper in Progress in Biophysics and Molecular Biology entitled "Cause of Cambrian Explosion - Terrestrial or Cosmic?" which argued in favour of panspermia as the origin of the Cambrian explosion, and posited that cephalopods are alien lifeforms that originated from frozen eggs that were transported to earth via meteor.[68] The claims gained widespread press coverage.[69][70][71] Virologist Karin Mölling, in a companion commentary published in the same journal, stated that the claims "cannot be taken seriously".[72]

## Participation in the creation-evolution debate

Wickramasinghe and his mentor Fred Hoyle have also used their data to argue in favor of cosmic ancestry,[73][74][75][76][77][78] and against the idea of life emerging from inanimate objects by abiogenesis.[79]

“  | Once again the Universe gives the appearance of being biologically constructed, and on this occasion on a truly vast scale. Once again those who consider such thoughts to be too outlandish to be taken seriously will continue to do so. While we ourselves shall continue to take the view that those who believe they can match the complexities of the Universe by simple experiments in their laboratories will continue to be disappointed.  | ”

|
|

Wickramasinghe attempts to present scientific evidence to support the notion of cosmic ancestry and "the possibility of high intelligence in the Universe and of many increasing levels of intelligence converging toward a God as an ideal limit."[80]

During the 1981 scientific creationist trial in Arkansas, Wickramasinghe was the only scientist testifying for the defense, which in turn was supporting creationism.[79][81] In addition, he wrote that the Archaeopteryx fossil finding is a forgery, a charge that the scientific community considers an "absurd" and "ignorant" statement.[82][83]

## Honours and awards

* Commonwealth Scholar at Trinity College, Cambridge, 1960-1963
* Powell Prize for English Verse, Trinity College, 1961
* Vidya Jyothi from the President of Sri Lanka, 1992
* Honorary DLitt, Sōka University (Japan), 1996
* Doctor of Science (honoris causa), University of Ruhuna, Sri Lanka, 2004
* Visiting By-Fellowship, visiting scholar, Churchill College, Cambridge, England 2015/16
* Ada Derana Sri Lankan of the Year 2017 - Global Scientist

Wickramasinghe was appointed Member of the Order of the British Empire (MBE) in the 2022 New Year Honours for services to science, astronomy and astrobiology.[84]

## Books

* Interstellar Grains (Chapman & Hall, London, 1967)[22]
* Light Scattering Functions for Small Particles with Applications in Astronomy (Wiley, New York, 1973)[85]
* Solid-State Astrophysics (ed. with D.J. Morgan) (D. Reidel, Boston, 1975)
* Interstellar Matter (with F.D. Khan & P.G. Mezger) (Swiss Society of Astronomy and Astrophysics, 1974)[86]
* The Cosmic Laboratory (University College of Cardiff, 1975)[87]
* Lifecloud: The Origin of Life in the Universe (with Fred Hoyle) (J.M. Dent, London, 1978)
* Diseases from Space (with Fred Hoyle) (J.M. Dent, London, 1979)[88]
* Origin of Life (with Fred Hoyle) (University College Cardiff Press, 1979)[89]
* Space Travellers: The Bringers of Life (with Fred Hoyle) (University College Cardiff Press, 1981)
* Evolution from Space (with Fred Hoyle) (J.M. Dent, London, 1981) ISBN 978-0-460-04535-3
* Is Life an Astronomical Phenomenon? (University College Cardiff Press, 1982) ISBN 9780906449493
* Why Neo-Darwinism Does Not Work (with Fred Hoyle) (University College Cardiff Press, 1982) ISBN 9780906449509
* Proofs that Life is Cosmic (with Fred Hoyle) (Institute of Fundamental Studies, Sri Lanka, Memoirs no.1, 1982)[90]
* From Grains to Bacteria (with Fred Hoyle) (University College Cardiff Press, 1984) ISBN 9780906449646
* Fundamental Studies and the Future of Science (ed.) (University College Cardiff Press, 1984) ISBN 9780906449578
* Living Comets (with Fred Hoyle) (University College Cardiff Press, 1985) ISBN 9780906449790
* Archaeopteryx, the Primordial Bird (with Fred Hoyle) (Christopher Davies, Swansea, 1986) ISBN 9780715406656
* The Theory of Cosmic Grains (with Fred Hoyle) (Kluwer, Dordrecht, 1991) ISBN 9780792311898
* Life on Mars? The Case for a Cosmic Heritage (with Fred Hoyle) (Clinical Press, Bristol, 1997) ISBN 9781854570413
* Astronomical Origins of Life: Steps towards Panspermia (with Fred Hoyle) (Kluwer, Dordrecht, 2000) ISBN 9780792360810
* Cosmic Dragons: Life and Death on Our Planet (Souvenir Press, London, 2001) ISBN 9780285636064
* Fred Hoyle’s Universe (ed. with G. Burbidge and J. Narlikar) (Kluwer, Dordrecht, 2003) ISBN 9781402014154
* A Journey with Fred Hoyle (World Scientific, Singapore, 2005) ISBN 9789812565792
* Comets and the Origin of Life (with J. Wickramasinghe and W. Napier) (World Scientific, Hackensack NJ, 2010) ISBN 9789812814005
* A Journey with Fred Hoyle, Second Edition (World Scientific, Singapore, April 2013) ISBN 9789814436120
* The search for our cosmic ancestry, World Scientific, New Jersey 2015, ISBN 978-981-461696-6.
* Walker, Theodore; Wickramasinghe, Chandra (2015). The Big Bang and God: An Astro-Theology. Palgrave Macmillan US. doi:10.1057/9781137535030. ISBN 978-1-349-57419-3.

## Articles

* Hoyle, F. and Wickramasinghe, N.C., 1962. On graphite particles as interstellar grains, Mon.Not.Roy.Astr.Soc. 124, 417-433[20]
* Hoyle, F.; Wickramasinghe, N.C. (1969). "Interstellar Grains". Nature 223 (5205): 450–462. doi:10.1038/223459a0. Bibcode: 1969Natur.223..459H.
* Wickramasinghe, N.C., 1974. Formaldehyde polymers in interstellar space, Nature 252, 462-463[91]
* Wickramasinghe, N.C.; Hoyle, F.; Brooks, J.; Shaw, G. (1977). "Prebiotic polymers and infrared spectra of galactic sources". Nature 269 (5630): 674–676. doi:10.1038/269674a0. Bibcode: 1977Natur.269..674W.
* Hoyle, F. and Wickramasinghe, N.C., 1977. Identification of the λ2,200A interstellar absorption feature, Nature 270, 323-324[91]
* F., Hoyle; N. C., Wickramasinghe (1976-11-04). "Primitive grain clumps and organic compounds in carbonaceous chondrites". Nature 264 (5581): 45–46. doi:10.1038/264045a0. Bibcode: 1976Natur.264...45H. http://www.buckingham.ac.uk/wp-content/uploads/2011/09/RefA1.pdf. Retrieved 2013-01-18.
* Hoyle, F. and Wickramasinghe, N.C., 1977. Polysaccharides and infrared spectra of galactic sources, Nature 268, 610-612[92]
* Hoyle, F.; Wickramasinghe, N.C. (1979). "On the nature of interstellar grains". Astrophysics and Space Science 66: 77–90. doi:10.1023/A:1002462602776. Bibcode: 1999Ap&SS.268..249H.
* Hoyle, F.; Wickramasinghe, N.C. (1979). "Biochemical chromophores and the interstellar extinction at ultraviolet wavelengths". Astrophysics and Space Science 65 (1): 241–244. doi:10.1007/BF00643503. Bibcode: 1979Ap&SS..65..241H.
* Hoyle, F.Expression error: Unrecognized word "etal". (1982). "Infrared spectroscopy over the 2.9-3.9μm waveband in biochemistry and astronomy". Astrophysics and Space Science 83: 405–409. doi:10.1023/A:1002417307802. Bibcode: 1999Ap&SS.268..161H.
* Hoyle, F.; Wickramasinghe, N.C.; Al-Mufti, S. (1982). "Organo-siliceous biomolecules and the infrared spectrum of the Trapezium nebula". Astrophysics and Space Science 86 (1): 63–69. doi:10.1007/BF00651830. Bibcode: 1982Ap&SS..86...63H.
* Hoyle, F.; Wickramasinghe, N.C. (1983). "Bacterial life in space". Nature 306 (5942): 420. doi:10.1038/306420a0. PMID 6646221. Bibcode: 1983Natur.306..420H.
* Hoyle, F. and Wickramasinghe, N.C., 1986. The case for life as a cosmic phenomenon, Nature 322, 509-511[93]
* Hoyle, F. and Wickramasinghe, N.C., 1990. Influenza – evidence against contagion, Journal of the Royal Society of Medicine 83. 258-261[94]
* Napier, W.M.; Wickramasinghe, J.T; Wickramasinghe, N.C. (2007). "The origin of life in comets". International Journal of Astrobiology 6 (4): 321–323. doi:10.1017/S1473550407003941. Bibcode: 2007IJAsB...6..321N.
* Rauf, K.; Wickramasinghe, C. (2010). "Evidence for biodegradation products in the interstellar medium". International Journal of Astrobiology 9 (1): 29–34. doi:10.1017/S1473550409990334. Bibcode: 2010IJAsB...9...29R.
* Wickramasinghe, N. C. (2010). "The astrobiological case for our cosmic ancestry". International Journal of Astrobiology 9 (2): 119–129. doi:10.1017/S1473550409990413. Bibcode: 2010IJAsB...9..119W.
* Wickramasinghe, N.C.; Wallis, J.; Wallis, D.H.; Schild, R.E.; Gibson, C.H. (2012). "Life-bearing planets in the solar vicinity". Astrophysics and Space Science 341 (2): 295–9. doi:10.1007/s10509-012-1092-8. Bibcode: 2012Ap&SS.341..295W.
* Chandra Wickramasinghe, A Journey with Fred Hoyle: The Search for Cosmic Life, World Scientific Publishing, 2005, ISBN 981-238-912-1
* Janaki Wickramasinghe, Chandra Wickramasinghe and William Napier, Comets and the Origin of Life, World Scientific Publishing, 2009, ISBN 981-256-635-X
* Chandra Wickramasinghe and Daisaku Ikeda, Space and Eternal Life, Journeyman Press, 1998, ISBN 1-85172-060-X

## See also

* Panspermia
* Red rain in Kerala
* Milton Wainwright

## References

1. ↑ Chown, Marcus (9 April 2005). "The Scientific Legacy of Fred Hoyle". NewScientist. https://www.newscientist.com/article/mg18624942.400-the-scientific-legacy-of-fred-hoyle-by-douglas-gough.html.
2. ↑ Wickramasinghe, Steve (2013). A Journey with Fred Hoyle. New York: World Scientific Publishing Co. Pte. Ltd.. ISBN 978-981-4436-12-0.
3. ↑ Napier, W.M. (2007). "Pollination of exoplanets by nebulae". Int. J. Astrobiol. 6 (3): 223–228. doi:10.1017/S1473550407003710. Bibcode: 2007IJAsB...6..223N.
4. ↑ Line, M.A. (2007). "Panspermia in the context of the timing of the origin of life and microbial phylogeny". Int. J. Astrobiol.. 3 6 (3): 249–254. doi:10.1017/S1473550407003813. Bibcode: 2007IJAsB...6..249L.
5. ↑ Wickramasinghe, D. T. & Allen, D. A. The 3.4-µm interstellar absorption feature. Nature 287, 518−519 (1980).
6. ↑ Allen, D. A. & Wickramasinghe, D. T. Diffuse interstellar absorption bands between 2.9 and 4.0 µm. Nature 294, 239−240 (1981).
7. ↑ Wickramasinghe, D. T. & Allen, D. A. Three components of 3–4 μm absorption bands. Astrophys. Space Sci. 97, 369−378 (1983).
8. ↑ 8.0 8.1 8.2 8.3 Joseph Patrick Byrne (2008). Encyclopedia of Pestilence, Pandemics, and Plagues. ABC-CLIO. pp. 454–455. ISBN 978-0-313-34102-1. https://www.academia.dk/MedHist/Sygdomme/PDF/Encyclopedia_of_Pestilence_Pandemics_and_Plagues.pdf.
9. ↑ 9.0 9.1 University of Buckingham. "Professor Chandra Wickramasinghe". http://www.buckingham.ac.uk/directory/professor-chandra-wickramasinghe/.
10. ↑ "Altimatrix Consulting". http://altimatrix.com/archives/817.
11. ↑ Connor, Steve (2011-03-01). "We're all aliens... how humans began life in outer space". The Independent. The Independent. https://www.independent.co.uk/news/science/were-all-aliens-how-humans-began-life-in-outer-space-2228530.html.
12. ↑ Ikeda, Daisaku (1998). Space and Eternal Life: A Dialogue Between Chandra Wickramasinghe and Daisaku Ikeda. Journeyman Press. ISBN 9781851720613. https://books.google.com/books?id=hFvYAAAAMAAJ.
13. ↑ "Professor Chandra Wickramasinghe — University of Buckingham". Buckingham.ac.uk. http://www.buckingham.ac.uk/directory/professor-chandra-wickramasinghe/.
14. ↑ "BBC News". UK National News Service. 7 September 2006. http://news.bbc.co.uk/1/hi/wales/5320658.stm.
15. ↑ 15.0 15.1 Caulfield, Noelle. "Fellowship Secretary". Churchill College, Cambridge. http://www.chu.cam.ac.uk/people/view/nalin-chandra-wickramasinghe/.
16. ↑ ISPA - About us .
17. ↑ Senaratne, Atula. "Prof.". University of Peradeniya. http://www.pdn.ac.lk/uop/inrc/Uploads/AstroBiologyConfefnce.pdf.
18. ↑ Tokoro, Gensuke. "Professor". Institute for the Study of Panspermia and Astroeconomics. http://www.ispajapan.com/page/ispa-news.
19. ↑ Smith, William. "Prof. Nalin Chandra Wickramasinghe". Department of Physics at University of Ruhuna. http://physics.ruh.ac.lk/academic/ap_c_wickramasinghe.php.
20. ↑ 20.0 20.1 "This Week's Citation Classic". ISI Current Contents. 1986-06-02. http://www.garfield.library.upenn.edu/classics1986/A1986C401400001.pdf.
21. ↑ 21.0 21.1 "Archive of key historical publications — University of Buckingham". Buckingham.ac.uk. 1980-04-03. http://www.buckingham.ac.uk/research/bcab/hrwarchive.
22. ↑ 22.0 22.1 Interstellar grains (Book, 1967). [WorldCat.org] . OCLC 407751.
23. ↑ Fred Hoyle, Chandra Wickramasinghe and John Watson (1986). Viruses from Space and Related Matters. University College Cardiff Press.
24. ↑ Brian L. Silver Professor of Physical Chemistry Technion Israel Institute of Technology (26 February 1998). The Ascent of Science. Oxford University Press, USA. pp. 341–2. ISBN 978-0-19-802769-0. https://books.google.com/books?id=j3t1AoCXYDEC.
25. ↑ Plait, Phil (2013-01-15). "Claims of Life in a Meteorite are Meteorwrong" (in en). https://slate.com/technology/2013/01/life-in-a-meteorite-claims-by-n-c-wickramasinghe-of-diatoms-in-a-meteorite-are-almost-certainly-wrong.html.
26. ↑ Nature, vol: 252, 462, 1974; and Nature, Vol 268, 610, 1977.
27. ↑ Wickramasinghe, D. T. & Allen, D. A. The 3.4-µm interstellar absorption feature. Nature 287, 518−519 (1980). Allen, D. A. & Wickramasinghe, D. T. Diffuse interstellar absorption bands between 2.9 and 4.0 µm. Nature 294, 239−240 (1981). Wickramasinghe, D. T. & Allen, D. A. Three components of 3–4 μm absorption bands. Astrophys. Space Sci. 97, 369−378 (1983).
28. ↑ N.C. Wickramasinghe, Formaldehyde Polymers in Interstellar Space, Nature, 252, 462, 1974
29. ↑ F. Hoyle and N.C. Wickramasinghe, Identification of the lambda 2200A interstellar absorption feature, Nature, 270, 323, 1977
30. ↑ Wickramasinghe, C. (2010). "The astrobiological case for our cosmic ancestry". International Journal of Astrobiology 9 (2): 119–129. doi:10.1017/S1473550409990413. Bibcode: 2010IJAsB...9..119W.
31. ↑ Wickramasinghe, C. (2011). "Bacterial morphologies supporting cometary panspermia: a reappraisal". International Journal of Astrobiology 10 (1): 25–30. doi:10.1017/S1473550410000157. Bibcode: 2011IJAsB..10...25W.
32. ↑ Secker, Jeff; Paul S. Wesson; James R. Lepock (26 Jul 1996). "Astrophysical and Biological Constraints on Radiopanspermia". The Journal of the Royal Astronomical Society of Canada 90 (4): 184–92. PMID 11540166. Bibcode: 1996JRASC..90..184S. https://cds.cern.ch/record/307658/files/9607139.pdf. Retrieved 3 August 2013.
33. ↑ 33.0 33.1 Hoyle, Fred (1985). Living Comets. Cardiff: University College, Cardiff Press.
34. ↑ 34.0 34.1 Wickramasinghe, Chandra (June 2011). "Viva Panspermia". The Observatory. Bibcode: 2011Obs...131..130W.
35. ↑ 35.0 35.1 Wesson, P (2010). "Panspermia, Past and Present: Astrophysical and Biophysical Conditions for the Dissemination of Life in Space". Space Sci. Rev.. 1-4 156 (1–4): 239–252. doi:10.1007/s11214-010-9671-x. Bibcode: 2010SSRv..156..239W.
36. ↑ 36.0 36.1 Hoyle, Fred; Wickramasinghe, N.C. (1982). "Proofs that Life is Cosmic". Mem. Inst. Fund. Studies Sri Lanka. Bibcode: 1982ptli.book.....H. http://www.panspermia.org/proofslifeiscosmic.pdf. Retrieved 3 August 2013.
37. ↑ Hoyle, Fred; Wickramasinghe, C. (1986). "The case for life as a cosmic phenomenon". Nature 322 (6079): 509–511. doi:10.1038/322509a0. Bibcode: 1986Natur.322..509H.
38. ↑ 38.0 38.1 Napier, W.M. (2004). "A mechanism for interstellar panspermia". Mon. Not. R. Astron. Soc. 348 (1): 46–51. doi:10.1111/j.1365-2966.2004.07287.x. Bibcode: 2004MNRAS.348...46N.
39. ↑ Hoyle, Fred (1981). Evolution from Space. London: J.M. Dent & Sons.
40. ↑ Hoyle, Fred (1981). Comets - a vehicle for panspermia. Dordrecht: D. Reidel Publishing Co.. p. 227.
41. ↑ 41.0 41.1 Wallis, M.K.; Wickramasinghe N.C. (2004). "Interstellar transfer of planetary microbiota". Mon. Not. R. Astron. Soc. 348 (1): 52–57. doi:10.1111/j.1365-2966.2004.07355.x. Bibcode: 2004MNRAS.348...52W.
42. ↑ Hoyle, Fred (1979). Diseases from Space. London: J.M. Dent & Sons.
43. ↑ Hoyle, Fred; Wickramasinghe, N.C. (1990). "Influenza – evidence against contagion". Journal of the Royal Society of Medicine 83 (4): 258–261. doi:10.1177/014107689008300417. PMID 2342043.
44. ↑ Hoyle, Fred (2000). Astronomical Origins of Life: Steps towards Panspermia.. Dordrecht: Kluwer Academic Press.
45. ↑ Wickramasinghe, Chandra; Hoyle, Fred (1998). "Miller-Urey Synthesis in the Nuclei of Galaxies". Astrophys. Space Sci. 259 (1): 99–103. doi:10.1023/A:1001579504620. Bibcode: 1998Ap&SS.259...99W.
46. ↑ Hoyle, Fred (1999). Astronomical Origins of Life; Steps Towards Panspermia. Kluwer Academic Press. ISBN 978-0-7923-6081-0.
47. ↑ "Life is a cosmic phenomenon; Wickramasinghe – Hoyle theories vindicated by Piyavi Wijewardene". 2017-06-05. http://newsfirst.lk/english/2017/06/life-cosmic-phenomenon-wickramasinghe-hoyle-theories-vindicated-piyavi-wijewardene/168328.
48. ↑ Harris, Melanie J.Expression error: Unrecognized word "etal". (2002). "Detection of living cells in stratospheric samples". Proc. SPIE. Instruments, Methods, and Missions for Astrobiology IV 4495 (Instruments, Methods, and Missions for Astrobiology IV): 192. doi:10.1117/12.454758. Bibcode: 2002SPIE.4495..192H.
49. ↑ Shivaji, S.Expression error: Unrecognized word "etal". (2009). "Janibacter hoylei sp.nov., Bacillus isronensis sp. nov. and Bacillus aryabhattai sp.nov. isolated from cryotubes used for collecting air from the upper atmosphere". International Journal of Systematic and Evolutionary Microbiology 59 (12): 2977–2986. doi:10.1099/ijs.0.002527-0. PMID 19643890. http://repository.iucaa.in:8080/jspui/bitstream/11007/1672/1/329A_2009.pdf. Retrieved 5 September 2019.
50. ↑ Yang, Y., Yokobori, S., Kawaguchi, J., et al., 2005. Investigation of cultivable microorganisms in the stratosphere collected by using a balloon in 2005, JAXA Research Development Report, JAXA-RR-08-001, 35-42
51. ↑ Yang, Y.; Yokobori, S.; Yamagishi, A. (2009). "Assessing panspermia hypothesis by microorganisms collected in the high altitude atmosphere". Biol. Sci. Space 23 (3): 151–163. doi:10.2187/bss.23.151. http://logos.ls.toyaku.ac.jp/~lcb-7/yamagishi/yang2009.pdf.
52. ↑ Red rain in Kerala
53. ↑ Wickramasinghe, C; Wainwright, M; Narlikar, J (May 24, 2003). "SARS--a clue to its origins?". Lancet 361 (9371): 1832. doi:10.1016/S0140-6736(03)13440-X. PMID 12781581.
54. ↑ Willerslev, E; Hansen, AJ; Rønn, R; Nielsen, OJ (Aug 2, 2003). "Panspermia--true or false?". Lancet 362 (9381): 406; author reply 407–8. doi:10.1016/S0140-6736(03)14039-1. PMID 12907025.
55. ↑ Bhargava, PM (Aug 2, 2003). "Panspermia--true or false?". Lancet 362 (9381): 407; author reply 407–8. doi:10.1016/S0140-6736(03)14041-X. PMID 12907028.
56. ↑ Ponce de Leon, S; Lazcano, A (Aug 2, 2003). "Panspermia--true or false?". Lancet 362 (9381): 406–7; author reply 407–8. doi:10.1016/s0140-6736(03)14040-8. PMID 12907026.
57. ↑ "Wild theory suggests COVID-19 came to Earth aboard a space rock" (in en). August 31, 2020. https://astronomy.com/news/2020/08/wild-theory-suggests-covid-19-came-to-earth-aboard-a-space-rock.
58. ↑ Wickramasinghe, Chandra; Wallis, J.; Wallis, D.H.; Samaranayake, Anil (10 January 2013). "Fossil Diatoms in a New Carbonaceous Meteorite". Journal of Cosmology 21 (37): 9560–71. Bibcode: 2013JCos...21.9560W. http://journalofcosmology.com/JOC21/PoloaruwaERR.pdf. Retrieved 2015-02-24.
59. ↑ Wickramasinghe, Chandra; Wallis, J.; Wallis, D.H.; Wallis, M.K.; Al-Mufti, S.; Wickramasinghe, J.T.; Samaranayake, Anil; Wickramarathne, K. (13 January 2013). "On the cometary origin of the Polonnaruwa meteorite". Journal of Cosmology 21 (38): 9572. Bibcode: 2013JCos...21.9572W. http://journalofcosmology.com/JOC21/Polonn2.pdf. Retrieved 2013-01-16.
60. ↑ Walter Jayawardhana (13 January 2013). "Polonnaruwa meteorite with evidence of life from outer space described the most important find in 500 years". LankaWeb. http://www.lankaweb.com/news/items/2013/01/13/polonnaruwa-meteorite-with-evidence-of-life-from-outer-space-described-the-most-important-find-in-500-years/.
61. ↑ Wickramasinghe, N.C.; Wallis, J.; Miyake, N.; Oldroyd, Anthony; Wallis, D.H.; Samaranayake, Anil; Wickramarathne, K.; Hoover, Richard B. et al. (4 February 2013). "Authenticity of the life-bearing Polonnaruwa meteorite". Journal of Cosmology 21: 9772. Bibcode: 2013JCos...21.9772W. http://journalofcosmology.com/JOC21/Polonnaruwa5R.pdf. Retrieved 2013-02-04.
62. ↑ 62.0 62.1 Phil Plait (15 January 2013). "No, Diatoms Have Not Been Found in a Meteorite". Slate.com - Astronomy. http://www.slate.com/blogs/bad_astronomy/2013/01/15/life_in_a_meteorite_claims_by_n_c_wickramasinghe_of_diatoms_in_a_meteorite.html.
63. ↑ "Meteors from outer space made definitive land fall in Aralaganwila says Professor Chandra Wickramasinghe". Hiru News. 29 April 2013. http://www.hirunews.lk/58032. "When our news team contacted Professor of Geology Athula Senarathna of University of Peradeniya who carried out a research on the meteorite fall in Aralaganvila, said that there could not be any truth in Prof. Chandra Wickramasinghe claim."
64. ↑ 64.0 64.1 "Aralaganwila stones are not meteors; says Peradeniya University". Hiru News. 14 January 2013. http://www.hirunews.lk/51379/aralaganwila-stones-are-meteors-says-peradeniya-university.
65. ↑ Wallis, Jamie; Miyake, Nori; Hoover, Richard B.; Oldroyd, Andrew; Wallis, Darryl H.; Samaranayake, Anil; Wickramasinghe, K.; Wallis, M.K. et al. (5 March 2013). "The Polonnaruwa Meteorite - Oxygen Isotope, Crystalline and Biological Composition". Journal of Cosmology 22 (2): 10004. Bibcode: 2013JCos...2210004W. http://journalofcosmology.com/JOC22/Paper22(2).pdf. Retrieved 6 August 2013.
66. ↑ Wallis, Jamie; Miyake, Nori; Hoover, Richard B.; Oldroyd, Andrew; Wallis, Daryl H.; Samaranayake, Anil; Wickramarathne, K.; Wallis, M.K. et al. (5 March 2013). "The Polonnaruwa Meteorite : Oxygen Isotope, Crystalline and Biological Composition". Journal of Cosmology 22 (2): 10004. Bibcode: 2013JCos...2210004W.
67. ↑ Plait, Phil (2013-03-11). "UPDATE: No, Life Has Still Not Been Found in a Meteorite" (in en). https://slate.com/technology/2013/03/meteorite-life-claims-of-fossils-in-a-meteorite-are-still-wrong.html.
68. ↑ Steele, Edward J. et al. (August 2018). "Cause of Cambrian Explosion - Terrestrial or Cosmic?" (in en). Progress in Biophysics and Molecular Biology 136: 3–23. doi:10.1016/j.pbiomolbio.2018.03.004. PMID 29544820. "Thus the possibility that cryopreserved Squid and/or Octopus eggs, arrived in icy bolides several hundred million years ago should not be discounted (below) as that would be a parsimonious cosmic explanation for the Octopus' sudden emergence on Earth ca. 270 million years ago.".
69. ↑ "Are octopuses aliens from outer space that were brought to Earth by meteors?" (in en). 2018-05-18. https://www.independent.co.uk/news/science/octopus-aliens-scientists-theory-meteors-space-earth-cambrian-explosion-a8358631.html.
70. ↑ Brandon Specktor - Senior Writer 17 May 2018 (2018-05-17). "No, Octopuses Don't Come From Outer Space" (in en). https://www.livescience.com/62594-octopuses-are-not-aliens-panspermia.html.
71. ↑ Livni, Ephrat (19 May 2018). "A controversial study has a new spin on the otherworldliness of the octopus" (in en). https://qz.com/1281064/a-controversial-study-has-a-new-spin-on-the-otherworldliness-of-the-octopus/.
72. ↑ Moelling, Karin (August 2018). "Commentary to: Cause of Cambrian explosion - Terrestrial or cosmic? Steele, E.J. et al." (in en). Progress in Biophysics and Molecular Biology 136: 24. doi:10.1016/j.pbiomolbio.2018.03.005. PMID 29571770. https://linkinghub.elsevier.com/retrieve/pii/S0079610718300804.
73. ↑ Creationism versus Darwinism. Published in Darwinism, Design, and Public Education, Michigan State University Press, 2003 ISBN 978-0870136757
74. ↑ Fred Hoyle and Chandra Wickramasinghe. Evolution from Space: A Theory of Cosmic Creationism, Touchstone, 1984 ISBN 0-671-49263-2
75. ↑ Wickramasinghe and Hoyle, Our Place in the Cosmos: The Unfinished Revolution, J.M. Dent & Sons, 1993 ISBN 978-0460860840
76. ↑ Fred Hoyle, Evolution From Space (The Omni Lecture) and Other Papers on the Origin of Life, (Enslow; Hillside, NJ; 1982 ISBN 978-0894900839
77. ↑ Figures don't Lie but Creationists Figure . By Alec Grynspan ( 9 November 1997)
78. ↑ Gangappa, Rajkumar; Wickramasinghe, Chandra; Wainwright, Milton; Kumar, A. Santhosh; Louis, Godfrey (29 Aug 2010). Hoover, Richard B; Levin, Gilbert V; Rozanov, Alexei Y et al.. eds. "Growth and replication of red rain cells at 121°C and their red fluorescence". Proceedings of the SPIE. Instruments, Methods, and Missions for Astrobiology XIII 7819: 18. doi:10.1117/12.876393. Bibcode: 2010SPIE.7819E..0NG.
79. ↑ 79.0 79.1 Fred Hoyle; Chandra Wickramasinghe (1986). Archaeopteryx, the Primordial Bird: A Case of Fossil Forgery. Christopher Davies. p. 135. ISBN 978-0715406656. https://archive.org/details/archaeopteryxpri0000hoyl/page/135.
80. ↑ Fry, Iris, Emergence of Life on Earth: A Historical and Scientific Overview, Rutgers University Press, 2000 ISBN 978-0813527406
81. ↑ Phy-Olsen, Allene, Evolution, Creationism, and Intelligent Design, Greenwood, 2010, pp 74-75 ISBN 978-0313378416
82. ↑ Charig, A. J.; Greenaway, F.; Milner, A. N.; Walker, C. A.; Whybrow, P. J. (1986). "Archaeopteryx is not a forgery". Science 232 (4750): 622–626. doi:10.1126/science.232.4750.622. PMID 17781413. Bibcode: 1986Sci...232..622C.
83. ↑ "A Case of Fossil Forgery?". AskWhy. 18 November 2012. http://askwhy.co.uk/dinosauroids/?p=42.
84. ↑ No. 63571. 1 January 2022. p. N26. https://www.thegazette.co.uk/London/issue/63571/supplement/N26
85. ↑ Light scattering functions for small particles, with applications in astronomy (Book, 1973). [WorldCat.org] . OCLC 520709.
86. ↑ Interstellar matter (Book, 1972). [WorldCat.org] . OCLC 744949.
87. ↑ The cosmic laboratory (Book, 1975). [WorldCat.org] . 1975-05-20. OCLC 3202695.
88. ↑ Diseases from space (Book, 1980). [WorldCat.org] . OCLC 6087814.
89. ↑ The origin of life (Book, 1980). [WorldCat.org] . OCLC 7677943.
90. ↑ Proofs that life is Cosmic (Book, 1982). [WorldCat.org] . OCLC 11524078.
91. ↑ 91.0 91.1 Wickramasinghe, N. C.. Formaldehyde polymers in interstellar Space. Cosmology Science Publishers. http://journalofcosmology.com/JoC16pdfs/Wick_2R - Copy.pdf. Retrieved 2013-01-18.
92. ↑ F., Hoyle; N. C., Wickramasinghe (1977-08-18). "Polysaccharides and infrared spectra of galactic sources". Nature 268 (5621): 610–612. doi:10.1038/268610a0. Bibcode: 1977Natur.268..610H. http://www.buckingham.ac.uk/wp-content/uploads/2011/09/RefA2.pdf. Retrieved 2013-01-18.
93. ↑ F., Hoyle; N. C., Wickramasinghe (1986-08-07). "The case for life as a cosmic phenomenon". Nature 322 (6079): 509–511. doi:10.1038/322509a0. Bibcode: 1986Natur.322..509H. http://www.buckingham.ac.uk/wp-content/uploads/2011/09/nature.pdf. Retrieved 2013-01-18.
94. ↑ Hoyle, F.; Wickramasinghe, N. C. (April 1990). "Influenza-evidence against contagion: discussion paper". Journal of the Royal Society of Medicine 83 (4): 258–261. doi:10.1177/014107689008300417. PMID 2342043.

## External links

* Professor Wickramasinghe's profile at the University of Buckingham
* Interviews
* Publication List Chandra Wickramasinghe@ Astrophysics Data System
* Prof Chandra Wickramasinghe in conversation with artist and poet, Himali Singh Soin, podcast, 2022

* v
* t
* e

Extraterrestrial life

Events and objects|

* ALH77005
* ALH84001
* Cells in the stratosphere
* CI1 fossils
* Murchison meteorite
* Nakhla meteorite
* Polonnaruwa meteorite
* Red rain in Kerala
* Shergotty meteorite
* Viking lander biological experiments
* Yamato 000593

Signals of interest|

| Misidentified|

* CP 1919 (misidentified pulsar)
* CTA-102 (misidentified quasar)

|

Stars|

* KIC 8462852 (unusual light fluctuations)
* EPIC 204278916 (unusual light fluctuations)
* VVV-WIT-07 (unusual light fluctuations)
* HD 164595 signal (unknown origin)

Other|

* SHGb02+14a (radio source)
* Wow! signal (inconclusive)
* Fast radio burst (unknown origin)

Life in the Universe|

* Earliest known life forms
* Habitability of Enceladus
* Habitability of Europa
* Habitability of Mars
* Habitability of Titan
* Habitability of Venus

Planetary
habitability|

* Catalog of Nearby Habitable Systems
* Circumstellar habitable zone
* Earth analog
* Extraterrestrial liquid water
* Galactic habitable zone
* Habitability of binary star systems
* Habitability of orange dwarf systems
* Habitability of red dwarf systems
* Natural satellite habitability
* Planetary habitability

Space missions|

* Beagle 2
* Biological Oxidant and Life Detection
* BioSentinel
* Curiosity rover
* Darwin
* Dragonfly
* Enceladus Explorer
* Enceladus Life Finder
* Europa Clipper
* ExoMars
* Rosalind Franklin rover
* ExoLance
* EXPOSE
* Foton-M3
* Icebreaker Life
* Journey to Enceladus and Titan
* Laplace-P
* Life Investigation For Enceladus
* Living Interplanetary Flight Experiment
* Mars Geyser Hopper
* Mars sample-return mission
* Mars 2020
* Northern Light
* Opportunity rover
* SpaceX Red Dragon
* Spirit rover
* Tanpopo
* Titan Mare Explorer
* Venus In Situ Explorer
* Viking 1
* Viking 2

Interstellar
communication|

* Active SETI
* Allen Telescope Array
* Arecibo message
* Arecibo Observatory
* Berkeley SETI Research Center
* Bracewell probe
* Breakthrough Initiatives
* Breakthrough Listen
* Breakthrough Message
* Communication with extraterrestrial intelligence
* Gauss's Pythagorean right triangle proposal
* Lincos language
* NIROSETI
* Pioneer plaque
* Project Cyclops
* Project Ozma
* Project Phoenix
* SERENDIP
* Search for extraterrestrial intelligence
* SETI@home
* setiQuest
* Voyager Golden Record
* Water hole
* Xenolinguistics

Exhibitions|

* The Science of Aliens

Hypotheses|

* Ancient astronauts
* Aestivation hypothesis
* Cosmic pluralism
* Directed panspermia
* Drake equation
* Extraterrestrial hypothesis
* Fermi paradox
* Great Filter
* Hypothetical types of biochemistry
* Interplanetary contamination
* Kardashev scale
* Mediocrity principle
* Neocatastrophism
* Panspermia
* Planetarium hypothesis
* Rare Earth hypothesis
* Zoo hypothesis

Related topics|

* Astrobiology
* Astroecology
* Biosignature
* Brookings Report
* Planetary protection
* Potential cultural impact of extraterrestrial contact
* Exotheology
* Extraterrestrials in fiction
* Extremophile
* Nexus for Exoplanet System Science
* Noogenesis
* San Marino Scale
* Technosignature
* UFO religion
* Xenoarchaeology

* v
* t
* e

Astrobiology

Disciplines|

* Astrochemistry
* Astrophysics
* Atmospheric sciences
* Biochemistry
* Evolutionary biology
* Exoplanetology
* Geomicrobiology
* Microbiology
* Paleontology
* Planetary science

Main topics|

* Abiogenesis
* Allan Hills 84001
* Biomolecule
* Biosignature
* Drake equation
* Earliest known life forms
* Earth analog
* Extraterrestrial life
* Extraterrestrial sample curation
* Extremophiles
* Hypothetical types of biochemistry
* List of microorganisms tested in outer space
* Molecules detected in outer space
* Ocean planet
* Origin of life
* Panspermia
* Planetary protection
* Search for extraterrestrial intelligence (SETI)
* Yamato meteorite

Planetary
habitability|

* Habitability of binary star systems
* Habitability of K-type main-sequence star systems
* Habitability of natural satellites
* Habitability of red dwarf systems
* Circumstellar habitable zone
* Earth analog
* List of potentially habitable exoplanets
* Tholin
* Extraterrestrial liquid water
* Galactic habitable zone
* Superhabitable planet

Space
missions|

| Earth orbit|

* BIO
* BIOCORE
* Biolab
* Bion
* BIOPAN
* Biosatellite program
* E-MIST
* ERA
* CROPIS
* EXOSTACK
* EXPOSE
* Lunar Micro Ecosystem
* O/OREOS
* OREOcube
* Tanpopo
* VEGGIE

|

Mars|

* Beagle 2
* ExoMars Trace Gas Orbiter
* Fobos-Grunt
* Mars Science Laboratory
* Curiosity
* Phoenix
* Viking

Comets and
asteroids|

* Hayabusa2
* OSIRIS-REx
* Rosetta

Planned|

* BioSentinel
* Dragonfly
* Europa Clipper
* ExoMars
* Rosalind Franklin rover
* Kazachock lander
* Mars 2020 rover
* HX-1

Proposed|

* CAESAR
* Enceladus Explorer
* Enceladus Life Finder‎
* Enceladus Life Signatures and Habitability
* Europa Lander
* ExoLance
* Explorer of Enceladus and Titan
* Icebreaker Life
* Journey to Enceladus and Titan
* Laplace-P
* Life Investigation For Enceladus
* Mars sample return mission
* Oceanus
* THEO
* Trident

Cancelled and
undeveloped|

* Astrobiology Field Laboratory
* Beagle 3
* Biological Oxidant and Life Detection
* Living Interplanetary Flight Experiment
* Mars Astrobiology Explorer-Cacher
* MELOS
* Northern Light
* Red Dragon
* Terrestrial Planet Finder

Institutions
and programs|

* Astrobiology Society of Britain
* Astrobiology Science and Technology for Exploring Planets
* Breakthrough Initiatives
* Breakthrough Listen
* Breakthrough Message
* Breakthrough Starshot
* Carl Sagan Institute
* Center for Life Detection Science
* European Astrobiology Network Association
* NASA Astrobiology Institute
* Nexus for Exoplanet System Science
* Ocean Worlds Exploration Program
* Spanish Astrobiology Center‎

* Category
* Commons
* Portal: Astronomy
* Biology

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Chandra Wickramasinghe. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Biography:Chandra_Wickramasinghe&oldid=694469"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template