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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

NASA's Perseverance rover on Mars has collected its 24th sample of Jezero Crater. The 'Comet Geyser' sample is "great for ...

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible planet strung across the heavens. This celestial lineup is an optical ...

Here's what will be visible in the night sky in the United States in May 2025. On May 12, the skies will be treated to the Flower Moon, also known as the Corn Planting Moon, Milk Moon, Hare's Moon and ...

In those drill sites, Curiosity detected deposits containing an iron carbonate material called siderite. According to Ben ...

Next, Tianwen 2 will fly back to Earth's orbit and release its reentry module, which will return to the ground with the ...

Perhaps the best known of all comets is Halley, correctly pronounced so that it rhymes with rally, not daily. It is named after the 17th-18th century astronomer Edmond Halley. This ...