Viral claims of a NASA UFO cover up resurface after a physicist cites astronaut sightings, strange space objects and Gemini ...
A former NASA staffer has claimed one of the astronauts on board the Challenger space shuttle saw footage of alien corpses ...
Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...
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