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.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

The existence of the Oort Cloud was first proposed in 1950 by Dutch astronomer Jan Oort, who imagined it as a shell of icy bodies swirling around the sun from up to 1.5 light-years away.

Take a journey through the Milky Way galaxy, exploring the wonders of our solar system and the distant stars that illuminate the night sky. The Milky Way is home to over 100 billion stars, each with ...

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show opening to the public on Monday.

While the outer Oort Cloud might still be spherical, the inner part appears to twist in a spiral pattern, suggesting our solar system is more dynamically connected to the galaxy than once thought ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

One evening while watching the Oort Cloud scene, scientists noticed something strange projected onto the planetarium’s dome. “Why is there a spiral there?” said the museum’s Jackie Faherty.

The existence of the Oort Cloud was first proposed in 1950 by Dutch astronomer Jan Oort, who imagined it as a shell of icy bodies swirling around the sun from up to 1.5 light-years away. The cloud is ...