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 ...

Stunning new photos show the pieces of the "other ATLAS," C/2025 K1, breaking apart in space after the golden comet suddenly ...

Could a comet’s path through the Solar System be fine‑tuned like that of a spacecraft? That is the provocative question at the heart of the latest developments surrounding the interstellar comet ...

Periodic storms in Texas this week may paint the sky orange. Here's the science behind changing colors during weather events.

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

This means that it would still take a little over four whole years of traveling at lightspeed to reach the red dwarf—not that ...

It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.

A technique called interferometry can greatly magnify tiny objects on the sky, and is powerful enough to reveal the surfaces ...

Using the James Webb Space Telescope, astronomers have detected unexpected high-energy ultraviolet radiation around five ...

For years, the center of our galaxy has been painted as a place where stars go to meet their end — a region ruled by Sagittarius A*, a black hole so massive that its gravity can stretch, tear, and ...