A number of people who've seen NASA's annual lunar phase and libration videos have asked what the other side of the Moon looks like, the side that can't be seen from the Earth. This video answers ...
The sun’s light exerts a tiny force called “solar radiation pressure” on objects in space. Lightweight human-made debris, ...
A near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new ...
During a total lunar eclipse, the lunar surface turns a rusty red color, earning the nickname "blood moon". The eerie red appearance is caused by sunlight interacting with Earth's atmosphere.
Neil Armstrong thought he had a 50–50 shot at pulling it off. "There are so many unknowns," the first man to set foot on the moon said in a 2011 interview with an Australian accounting firm.