Some of the most revealing objects in the solar system do not belong to it. Comet 3I/ATLAS, only the third confirmed interstellar visitor ever identified, has become a test case for how modern ...

How different can a comet be when it formed around another star? For 3I/ATLAS, the answer is already reshaping how astronomers think about small icy bodies that drift between stellar systems. Only two ...

Scientists detect alcohol on interstellar comet 3I/ATLAS. The strange discovery could reveal secrets about alien solar systems and cosmic chemistry.

Asteroids are some of the oldest objects in the solar system: leftovers from the chaotic time when planets were assembling ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.

The interstellar comet 3I/ATLAS was confirmed in July 2025 as the third known object to visit our solar system from interstellar space. Despite conspiracy theories, scientists say 3I/ATLAS shows all ...

Debris flying immediately after DART collided with Dimorphos. (NASA DART team and LICIACube) In 2022, NASA made history, deliberately smashing a spacecraft into an asteroid to see if it could alter ...

The horizontal coordinate system uses two angles: altitude (or elevation) and azimuth, relative to the observer’s horizon, to locate the celestial object in three-dimensional space. This method is ...

NASA's DART mission didn’t just change the orbit of Dimorphos, the asteroid it hit. It changed the orbit of the larger Didymos around the sun.

Scientists explore the Interplanetary Habitable Zone framework to evaluate habitability beyond the Goldilocks Zone, considering energy, radiation, transport, and material factors in planetary systems.