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 ...

Roxanne Morin, a San Antonio native, says she and her family "only caught the end of it" on camera, but it appeared active ...

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, ...

14 Read full article: Downriver high schools unite for Victory Day, giving kids with disabilities ... As of Thursday, the comet known as 3I-Atlas was 238 million miles (384 million kilometers) from ...

Observers mention Comet SWAN as a small, condensed coma with a faint tail. By mid-October, it will become easier to be visible from northern latitudes, climbing steadily higher in the southwest ...

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

Named 3I/ATLAS, the comet is only the third known interstellar object to enter our solar system, and it's the largest and brightest one yet. Perhaps unsurprisingly, researchers around the world are ...

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 ...

This unexpected color raises new questions about the alien chemistry of comets from beyond our solar system. On Sept. 7 2025, the skies darkened as Earth's shadow consumed the moon. Skywatchers in ...

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 ...

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 ...

This coming autumn brings a thrilling lineup of comets visible from both hemispheres, framed as a “parade of comets” for skywatchers to enjoy—made all the more compelling through coordinated ...