This invisible boundary, located about 100 astronomical units (AU) from the Sun (one AU is the distance from Earth to the Sun ...

If you have your glasses ready, head outside for the big event, and you can follow along for the latest updates on the solar eclipse here.

3I/ATLAS is the third interstellar object ever detected within our solar system, following ‘Oumuamua in 2017 and 2I/Borisov in 2019. These objects moved quickly through our solar system, giving ...

The latest solar system breaking news, comment and features from the experts at Live Science ...

An interstellar object called 3I/ATLAS is passing through our solar system this year, NASA announced yesterday. Today at 6 p.m. ET, you can see it for yourself, thanks to a livestream from the ...