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The climate of Mars has been a topic of scientific curiosity for centuries, in part because it is the only terrestrial planet whose surface can be easily...

STS-135 (ISS assembly flight ULF7) was the 135th and final mission of the American Space Shuttle program. It used the orbiter Atlantis and hardware originally...

Atlas is a family of US missiles and space launch vehicles that originated with the SM-65 Atlas. The Atlas intercontinental ballistic missile (ICBM) program...

Galactic astronomy is the study of the Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything...

Svobodny (Russian: Свобо́дный) was a Russian rocket launch site located approximately 15 km north of Svobodny, Amur Oblast. The cosmodrome was originally...

MidSTAR-1 is an artificial satellite produced by the United States Naval Academy Small Satellite Program. It was sponsored by the United States Department...

ATS-6 (Applications Technology Satellite-6) was a NASA experimental satellite, built by Fairchild Space and Electronics Division It has been called the...

David Stewart McKay (September 25, 1936 – February 20, 2013) was chief scientist for astrobiology at the Johnson Space Center. During the Apollo program...

Nitrous oxide fuel blend propellants are a class of liquid rocket propellants that were intended in the early 2010s to be able to replace hydrazine as...

In epistemology, epistemological solipsism is the claim that one can only be sure of the existence of one's mind. The existence of other minds and the...