"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 ...

The search for water on the Moon has captivated scientists for decades. Beyond its implications for understanding planetary ...

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 ...

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 ...

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 ...

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

“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 ...