Comet Lemmon, a rare astronomical event that won’t happen again for 1,000 years, is set to light up our skies later this week ...

Astronomers have observedunexpected activity in C/2014 UN271, the largest comet ever detected from the Oort Cloud, while it ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Week of October 26 - November 1, 2025 It's been a few years since we've seen a decently bright comet grace the nighttime sky, ...

ALMA captures surprising activity in comet C/2014 UN271, Bernardinelli-Bernstein comet, the largest ever detected.

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned ...

Late October offers a meteor shower generated by Haley's Comet plus a once in a lifetime comet that streaks by Earth every ...

NASA's Voyager 1 probe launched into space in 1977, shortly after the Voyager 2 probe. Since then it has continued transmitting data back to Earth.

The human mind may find it difficult to conceptualize a cosmic cloud so colossal it surrounds the Sun and eight planets as it extends trillions of miles into deep space. The spherical shell known as ...

Voyager 1 and 2, launched in 1977, have traversed the heliopause and are currently in interstellar space, with Voyager 1 significantly farther from the Sun due to its higher velocity. The Oort Cloud, ...

New research may shine a light on part of outer space's great mysteries: the Oort Cloud. The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of ...