David Jewitt at the University of California, Los Angeles, and his colleagues studied images from ground-based and ...

Launched in 1977, Voyager 1 has surpassed its initial objectives and now journeys through interstellar space. It crossed into ...

Your odds of winning the lottery are still 100,000 times larger than the probability of either Voyager hitting a comet.

Learn about the interstellar comet 3I/ATLAS, a high-velocity visitor from another star system. Learn how NASA is tracking its ...

NASA's Voyager 1, launched in 1977, has detected an unexpected hot and energetic \"firewall\" just beyond the heliopause, ...

NASA’s Hubble Space Telescope has captured its most detailed image yet of interstellar comet 3I/ATLAS. The rare comet is ...

A Harvard astronomer is suggesting that an interstellar object nearing Earth could be an engineered object — rather than a ...

The Oort Cloud is a vast, icy shell that surrounds the solar system, marking the farthest reaches of our cosmic neighborhood. Though we have yet to directly observe its objects, the Oort Cloud is ...

The NSF-DOE Vera C. Rubin Observatory in Chile recently captured rare footage of the visitor known as 3I/ATLAS — only the third interstellar object discovered. What’s more impressive: The observatory ...

The comet’s orbit is huge, extending out to about 55,000 times the Earth-sun distance—87 percent of a light-year and well out into the Oort Cloud of icy objects that surrounds our sun.

Have you ever wondered how many stars you can see at night? From a perfect dark sky location, free from any light pollution, a person with excellent vision may observe a few thousand stars in the sky ...