Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's ...

May the oldest comet on record also be one of the most bizarre? The interstellar visitor 3I/ATLAS, found on July 1, 2025, is rewriting the book on what a comet from outside our Solar System will do.

In the past decade, the European Space Agency's Gaia space telescope has revealed the nature, history, and behavior of ...

A new analysis of the EHT reveals that Sagittarius A*, the central black hole of the Milky Way, is spinning rapidly and ...

Astrophysicist Edwin Hubble was offered a staff position at the Mount Wilson Observatory in 1919 by the founder and director ...

Massive stars like these are also key players in the cosmic drama of gravitational waves, the ripples in space-time first ...

Our Milky Way is one of more than 100 galaxies bound together by gravity.

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum ...

It’s worth noting that stars didn’t even start showing up until about 300 million years after the Big Bang. So, whether ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble ...

NASA and ESA’s Hubble Space Telescope have recently released a breathtaking new image of NGC 2835, a spiral galaxy located 35 ...

Hubble has taken the clearest image to date of the interstellar comet 3I/ATLAS, which is racing through our solar system at ...