Big Bang

From Wikipedia - Reading time: 3 min

Simulated image of the first stars, 400 Myr after the Big Bang.

The term Big Bang generally refers to the idea that the Universe has expanded from a primordial hot and dense initial condition at some finite time in the past. According to the ESA/Planck data, released in February 2015, the initial conditions occurred 13.799 ± 0.021 billion years ago, and the Universe continues to expand to this day and onwards.


Licensed under CC BY-SA 3.0 | Source: https://en.wikipedia.org/wiki/Category:Big_Bang
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