Discover the secrets of 3I/ATLAS, a 7-billion-year-old interstellar comet making its closest approach to Earth on Dec 19.

While NASA's James Webb Telescope and other instruments have already spotted abundant water vapor, carbon monoxide and carbon ...

Europe’s Ariane 6 successfully launched two Galileo satellites from Kourou, strengthening the EU’s navigation constellation ...

NASA's Hubble Space Telescope has gotten a rare peek at the aftermath of two cosmic collisions — and helped scientists solve ...

Comet 3I/ATLAS is the third known interstellar comet after 2017's 1I/'Oumuamua and 2019's 2I/Borisov. It was discovered on July 1, 2025 and made its closest approach to the sun in October. Now it is ...

Europe's new Ariane 6 rocket successfully placed two satellites into orbit to join the EU's rival to the GPS navigation ...

ESA images show a large meteoroid strike on Apollinaris Mons, leaving more than 100 mysterious moving dust marks on Mars.