​Comet 3I/ATLAS has been getting a lot of attention lately because it keeps showing signs that don’t fully fit what we normally expect from a comet. Avi Loeb, a well-known Harvard astrophysicist, ...

Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the ...

A simple look at ALMA’s new finding showing the highest methanol and hydrogen cyanide levels ever seen in a comet.

Tryptophan, the essential amino acid behind the Thanksgiving myth that eating turkey can make you sleepy, has been found to ...

3I/ATLAS is only the third known interstellar visitor, hence the prefix “3I.” The second known interstellar body, Comet 2I/Borisov, was discovered by the Russian astronomer Gennady Borisov in August ...

Public fascination with the interstellar object 3I/ATLAS intensified this week after a surge of online posts claimed the visitor was aligned with newly discovered comet C/2025 R2 (SWAN) in what some ...

Comet 3I Atlas is currently ~186 million miles from Earth, which is twice the distance from the Earth to the sun. It is ...

On November 27, 1885, an astronomer made the first known photograph of a meteor. The picture was taken by Austro-Hungarian ...

Key Findings The tail shouldn't exist at that distance. The mass loss exceeds what the object can afford to lose. What we're ...

When a faint green smudge appeared in images from a backyard telescope in Aguadilla, Puerto Rico, on Nov. 22, 2025, astronomers did not expect it to upend basic assumptions about how comets work. Yet ...

It was soon deduced that this is an interstellar comet, meaning it has come from another solar system. It’s only the third ...

According to the team, the object likely came from the direction of Sagittarius, and will depart our Solar System towards ...