An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

Galaxies have an overall internal motion called disk velocity. It’s how gas, dust, and stars move around the galactic center.

Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for ...

U.S. Sens. John Cornyn and Ted Cruz got language into President Donald Trump's "Big, Beautiful Bill" that creates a path for ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the NumbersAt the ...

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

A mysterious object the size of Manhattan, originating from outside our Solar System, has been spotted by astronomers.

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, ...

This image from the Hubble Space Telescope shows the massive galaxy cluster Abell 1351, located in the constellation Ursa ...

The first ever recorded 'planet with a death wish' orbits so close to its host star that it triggers huge flares of radiation ...

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid ...