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

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

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show. At the American Museum of Natural History last fall, experts were hard at work preparing ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be chemically active. Astronomers have discovered that the largest comet from the ...

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 YORK (AP) — Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History ...

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

Launched in 1997, NASA’s Voyager spacecraft has been traveling ever since, and it was around 167 astronomical units (AU) away from Earth. It was the first spacecraft to go beyond the heliosphere, ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. This scene from the new Hayden Planetarium Space Show "Encounters in the Milky Way" at the American Museum of Natural History ...

A groundbreaking discovery was recently made about the largest comet ever observed hurtling toward the sun from the Oort Cloud in the outer reaches of our solar system. Astronomers recently got a ...