Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside ...

June.3I/ATLAS Interstellar Comet Live Tracker: The European Space Agency (ESA) ruled out sending a spacecraft due to the ...

By early December, 3I/ATLAS will move away from the Sun’s vicinity, and its glare, and will be visible again in the Northern ...

Watch the Sept. 21 partial solar eclipse live online with this handy livestream. Coverage begins at 2 p.m. EDT (1800 GMT).

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of the solar system as we thought. A team of astronomers led by Julio Fernández ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?