When engineers at a control center in Turin, Italy, sent a faint radio signal into space, they set off a world-first ...

NASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system on Sept. 26, ...

Since its discovery, astronomers have been frantically trying to gather as much information as they can about the newest interstellar interloper dubbed 3I/ATLAS. It's been challenging, but they've ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

For weeks, Elena Adams has been leading her team at the Applied Physics Laboratory (APL) in Laurel, Maryland, through ...

3I/ATLAS first made news in July when scientists confirmed it as the third-ever observed interstellar interloper in our solar system. The space object further attracted the public's fascination again ...

An image of interstellar comet 3I/ATLAS taken by the Hubble Space Telescope ... to study the aftermath of NASA's DART (Double ...

Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's attention in July 2025.

Hubble Space Telescope observations have provided size estimates for the nucleus of interstellar comet 3I/ATLAS, ranging from 320 meters to 5.6 kilometers in diameter, though the nucleus itself ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. This week, the famed NASA/ESA Hubble Space Telescope turns 35 years ...