"If the moon and a planet are near Castor and Pollux you have an impressive show." From our earthly perspective, the moon and Mars will appear closest to each other at around 8 p.

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

A space probe flying past Mars captured images of the red planet's small, mysterious moon. While on a flyby of Mars, Hera was able to use three of its imaging instruments to capture images of ...

Deimos is tidally locked to Mars, meaning that like Earth's moon, it continually shows the same face to the Red Planet. Most previous images of the small, 7.7-mile-wide (12.4 kilometers) Deimos have ...