SHANGHAI -- Chinese scientists have attributed the sudden movement of a boulder on the surface of a comet to a phenomenon ...

The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still ...

On top of that, without knowing the mix of ices on a comet’s surface, predictions of what material will be released and at what points are vague. A comet with a lot of dry ice will become active ...

And as it gets closer to the heat of the Sun, the ice heats up past the point of remaining solid — but rather than melting into water, it becomes a gas which erupts from the comet's surface in ...

their nongravitational accelerations imply that they're losing ices from their surface, which is an important characteristic of comets, says Taylor. How important were dark comets in delivering ...

Comet C/2024 G3 (ATLAS) as seen from the International Space Station on Jan. 11, 2025. (Image credit: Don Petit/NASA) Rendezvous with the sun The comet reached perihelion on Jan. 13 at around 1000 ...

Comet ATLAS (C/2024 G3 ... Probe reached just 3.86 million miles (6.1 million kilometers) from the sun's surface. It survived, but only thanks to some incredible thermal armor.

Astronomers have some new insight into the activity of centaurs, giant comets that could have a devastating impact if they hit the Earth's surface. Produced by Justin Gmoser and Jessica Orwig.

From Jan. 11 to 15, 2025, a bright comet surged through images from the ESA (European Space Agency) and NASA SOHO (Solar and Heliospheric Observatory) spacecraft. Called C/2024 G3 (ATLAS), the ...