When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

Watch the epic view of the moon and Earth captured by the Orion spacecraft ahead of its outbound powered flyby. Credit: NASA ...

The gleaming moon hanging in our sky has been the subject of countless songs, poems, myths, and legends. But in reality, what would happen if the Earth suddenly lost the moon? Quite a few things, ...

In the 1960s, Frank Sinatra's song "Fly Me to the Moon" became closely associated with the Apollo missions. The optimistic ...

The moon will appear a striking red color for some around the world thanks to a total lunar eclipse in the first weekend of September – but sadly it won't be visible from the United States. A lunar ...

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...