NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage courtesy: NASA/NRL/B.Gallagher | edited by Steve Spaleta ...

The interstellar object ‘Oumuamua, the first object to pass through our solar system from another star, is actually a comet, scientists say. See how they know here. Credit: ESA/Hubble, ESO, NASA, ESA, ...

Telescope observations reveal a growing tail on the comet that’s visiting from another star. Released Thursday, the ...

It seems like every few years, someone or something predicts the end of the world. We’ve seen predictions tied to ancient ...

Named 3I/ATLAS, the comet is only the third known interstellar object to enter our solar system, and it's the largest and ...

Astrophysicist Avi Loeb, the former chairman of Harvard's Department of Astronomy and current head of Harvard's Galileo Project, which searches for ...

The comet, which poses no risk to Earth, first burst onto the scene July 1, spotted by NASA’s ATLAS survey telescope in Chile ...

NASA’s SPHEREx joined Webb and Hubble in studying interstellar comet 3I/ATLAS, gathering data on its size, chemistry, and physical traits. While harmless to Earth, the comet provides scientists a rare ...

The interstellar visitor appears to have a lot in common with its solar system brethren. On July 1, 2025, the Deep Random Survey remote telescope in Chile, part of the ATLAS (Asteroid ...

Webb, Hubble, and SPHEREx are joining forces to study the interstellar comet 3I/ATLAS, revealing details about its structure and chemistry. The comet isn’t dangerous, but it’s offering scientists a ...

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.

Aug. 27 (UPI) --NASA observed interstellar comet 3I/ATLAS through the lens of the James Webb Space Telescope for the first time. On Aug. 6, the telescope with its near-infrared Spectrograph instrument ...