Search results for comets

Planetary Sciences Jul 16, 2025

Gemini north observes comet 3I/ATLAS, the third-known interstellar object

Interstellar objects are visitors from solar systems beyond our own, and the third ever such object, known as 3I/ATLAS, has just been discovered. Using the Gemini North telescope, astronomers have captured 3I/ATLAS as it ...

Other Jul 12, 2025

Saturday Citations: Disproving string theory; interstellar comet arrives; lemurs age gracefully

Well, it's July 12, which means (a) the Steam Summer Sale is over and (b) it's really hot outside in the northeastern U.S. This week, researchers discovered a cool new fish and named it after Darth Vader. An analysis of the ...

Astronomy Jul 11, 2025

3I/ATLAS: Interstellar object 'may be oldest comet ever seen'

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say.

Planetary Sciences Jul 3, 2025

New interstellar comet will keep a safe distance from Earth, NASA says

NASA has discovered an interstellar comet that's wandered into our backyard.

Planetary Sciences Jul 3, 2025

Tianwen-2 probe captures Earth images en route to sample asteroid and comet

China's Tianwen-2 probe continues on its journey to rendezvous with a near-Earth asteroid (NEA) before heading to the main asteroid belt. The second in China's interplanetary exploration program (which translates to "Questions ...

Astronomy Jul 3, 2025

Third-ever confirmed interstellar object blazing through solar system (Update)

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our solar system—only the third ever spotted, though scientists suspect many more may slip past unnoticed.

Astronomy Jun 17, 2025

Largest Oort Cloud comet ever observed reveals its secrets under ALMA's powerful gaze

A team of astronomers has made a groundbreaking discovery by detecting molecular activity in comet C/2014 UN271 (Bernardinelli-Bernstein)—the largest and second most distantly active comet ever observed from the Oort Cloud.

Polymers Jun 10, 2025

Comet-catching NASA technology enables exotic works of art

Consisting of 99% air, aerogel is the world's lightest solid. This unique material has found purpose in several forms—from NASA missions to high fashion.

Space Exploration May 2, 2025

How to catch the Eta Aquarid meteor shower, debris of Halley's comet

Halley's comet swings near Earth every 75 years. But debris left by the comet leads to two major meteor showers every year including the Eta Aquarids.

Astronomy Apr 30, 2025

When a comet hits a tidally locked exo-Earth

Comets that have hit Earth have been a mixed bag. Early in Earth's history, during the solar system's chaotic beginning, they were likely the source of our planet's water, ultimately making up about 0.02% of the planet's ...

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