There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a ...

At 11 A.M. EDT, the Moon will pass 4° south of Mars in the constellation Virgo. Shortly after sunset, the Moon, Mars, and Spica (Virgo's brightest star) will be briefly visible low on the western ...

On October 22, the Moon will achieve two close conjunctions, passing 5° south of Mars and 2° south of Mercury, before reaching its orbital apogee at 406,445 km (252,553 miles) from Earth. Observers ...

Phobos is the larger and innermost of Mars' two moons, and it's a fascinating celestial body. It's small, irregularly shaped, and orbiting just about 6,000 kilometers above the surface of the Red ...

NASA's ex-Administrator told Congress the U.S. is in danger of losing the new space race to the Moon due to SpaceX's cascading delays in perfecting its Starship lunar lander. (Photo by Loren ...

Moon watchers are in for a treat Monday night: October's full moon is also a supermoon — this year's first — and the full moon in Aries. Here's what to know about the lunar event. When the moon’s ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy lifting was more challenging than I initially thought." When you purchase ...