"These stars have exactly the low temperatures and luminosities where a comet could form with the type of composition found in comet Borisov," he explained. Based on its high speed (33km/s ...

It really rocked their world. Scientists using the James Webb Space Telescope have better observed an asteroid that strangely possesses hybrid characteristics of a comet as well. The strange rock mass ...

The comet could be amongst the brightest seen in our skies for 20 years, if the weather is good enough to see it. It will get ...

By studying the composition and behavior of these icy bodies, scientists can learn about the building blocks of planets, moons, and other celestial objects. The observation of sun-grazing comets ...

Morgan Nunn Martinez studied lunar rocks from the 1969 Apollo 9 mission to learn about the origin of moon water. They found ...

If it survives its unusually close passage of the Sun, Comet C/2024 G3 has the potential to become the brightest comet of 2025, reaching a magnitude of -4.5—about the same brightness as Venus.

We need to find more dark comets, says Taylor. Looking for activity on these objects, particularly when they're the closest to the sun, will also help constrain the composition of these objects ...

In the second week of 2025, we could see a new object grace the skies as comet ATLAS (C/2024) G3 gets close to the sun. In the wake of comet C/2023 A3 (Tsuchinshan–ATLAS) in October, comet G3 is ...

“The asteroid’s composition is consistent with that of ... Previous research claimed that the rock was a “long-period” comet from the Oort Cloud—an icy sphere of debris around the ...

A comet is a small celestial body made of ice, dust, and rocky particles that orbits the Sun. It is often referred to as a "dirty snowball" because of its composition. When a comet approaches the ...