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1. Explorers Program: The Explorers program is a NASA exploration program that provides flight opportunities for physics, geophysics, heliophysics, and astrophysics investigations from space. Launched in 1958, Explorer 1 was the first spacecraft of the United States to achieve orbit. (Astronomy) [100%] 2023-09-20 [NASA programs] [Explorers Program]...
2. Explorers Program: The Explorers program is a NASA exploration program that provides flight opportunities for physics, geophysics, heliophysics, and astrophysics investigations from space. Launched in 1958, Explorer 1 was the first spacecraft of the United States to achieve orbit. (Ongoing United States space exploration program) [100%] 2023-10-17 [NASA programs] [Explorers Program]...
3. List of Explorers Program missions: This is a list of missions and spacecraft of the NASA Explorers Program. This list was originally based on data from the NSSDC master catalog listing. (Astronomy) [63%] 2023-11-05 [Explorers Program] [Lists of space missions]...
4. List of Explorers program missions: List of Explorer program missions is a list of missions and spacecraft of the NASA Explorer program. This list was originally based on data from the NSSDC master catalog listing. (Astronomy) [63%] 2023-11-05 [Explorers program (NASA)] [Lists of space missions]...