This week, astronomers spotted the third known interstellar visitor to our Solar System. First detected by the Asteroid ...

Celebrate the Fourth with the Fireworks Galaxy, then check out the Demon Star Algol and the Full Buck Moon in the sky this ...

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

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, ...

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