Mars' moon Phobos may actually be a comet — or at least part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

The moon, the Milky Way, Saturn, Venus, Jupiter Mars, Neptune, Uranus and comet C/2024 G3 are all visible at once in ...

Beautifully captured against a starry sky, Comet C/2024 G3 (ATLAS) — dubbed by some as the "Great Comet of 2025" — shines ...

Exciting February sky events include Venus at its brightest and closest to Earth, the moon occulting the Pleiades, and a parade of planets in the post-sunset sky.

The Noachian era’s importance in the formation of Mars is characterized by a series of asteroid and comet bombardments that shaped the planet’s surface. Rocks from this era are some of the ...

A speeding comet the size of a mountain will come within 140,000km of Mars on Sunday Oct 19, and NASA is planning to observe it with just about everything the agency’s got.

BEIJING, Feb. 28 (Xinhua) -- China is set to launch the Tianwen-2 mission this year, aiming to unravel the mysteries of a "living fossil" of the solar system and one "rebel" of the main asteroid belt.