The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the sun and eight planets as ...

A3 Tsuchinshan-ATLAS is visible one last time on Dec. 23 via a virtual observatory before fading from view for thousands of years.

Anyone tempted to ascribe the nighttime sightings of aircraft to alien intelligence ought to be dissuaded by the vast scale ...

The Oort Cloud comet — also known as the Tsuchinshan-ATLAS — will be lighting up the sky starting Oct. 9 Stargazers will be able to witness a "once-in-a-lifetime" comet in the night sky this ...

We know that interstellar objects occasionally visit our solar system. So far, we have only discovered two interstellar ...

The spacecraft—humanity's most distant probe—managed to resumed contact by switching to a secondary radio not used since 1981.

Comet A3 is a long-period comet from the Oort Cloud, a sphere around our solar system home to millions of comets. It's in an orbit of roughly 80,000 years. It was discovered in January 2023 by ...

Once combined, Oort’s identity-centric technology will enhance Cisco’s Security Cloud’s user context telemetry, according to San Jose, Calif.-based Cisco. The two companies did not disclose ...

Asteroids originate from the asteroid belt, planetary collisions, Kuiper Belt, Oort Cloud, extinct comets, and space debris ...