The moon performed a cosmic ballet with Mars this week.

The Wolf Moon will reach its peak fullness at 5:27 p.m. Eastern Time on January 13. It will rise in the sky about an hour ...

On Monday night you may have a chance to witness the moon obscuring the Red Planet at its brightest, as well as a comet’s ...

An exploding budget and an unraveling schedule spell disappointment for NASA's mission to learn more about Mars's history.

A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them ...

It's called an occultation, and it doesn't happen frequently. Here's how to see the dance between the full moon and Mars ...

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

Mars will seem to disappear behind the full wolf moon Monday for many sky-gazers. Throughout January, also look up to see ...

As Mars approaches opposition this week, it will become a dazzling spectacle in the night sky. See it at its best now, or ...

Geologically, Mars is very reminiscent of the moon. But it also looks a lot like the Earth. It all depends on who you ask.

It’s a term used by astronomers to describe when Earth, Mars and the Sun align. When this happens, Earth sits directly ...