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 ...

Time is running short for scientists hoping to collect data from 3I/Atlas, a massive interstellar object hurtling away from ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary disk might be to blame.

Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a ...

Over 80% of exoplanetary systems with three or more planets exhibit a "peas-in-a-pod" architecture, characterized by similarly sized planets closely spaced and orbiting near their star. A new study ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

Webb just spotted a carbon-rich moon factory 625 light-years away, revealing how moons like ours may have first taken shape.

(CNN) — An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a ...