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 ...

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

Mars, the fourth planet from the Sun, is a subject of fascination for astronomers. Though significantly smaller than Earth, this red-hued world has two moons that continue to spark debate among ...

South Korea aims to make a Mars landing by 2045, President Yoon Suk Yeol said Thursday, outlining plans to spend about $70 billion over the coming decades on space exploration. The two small moons of ...

Once in a while, you might look up and marvel at magnificent views of our moon, its surface dramatically lit by our sun’s light. But have you ever paused to wonder what other moons might look like ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A rare black moon darkens the sky on Aug. 23, 2025, followed by a close encounter between the ...

Mars will put on a show in the second half of this month. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This has been a most interesting year ...

The two small moons of Mars, Phobos (about 22km in diameter) and Deimos (about 13km in diameter), have been puzzling scientists for decades, with their origin remaining a matter of debate. Some have ...