Oort Cloud Trivia Questions

It's a theoretical sphere of icy planetesimals, extending up to 100,000 AU from the Sun, far beyond the Kuiper Belt.

Long-period comets, like Halley's Comet, come from the Oort Cloud, while short-period comets come from the Kuiper Belt.

The Oort Cloud's outer edge is about 1.5 light-years away, while Proxima Centauri is 4.25 light-years away, so the cloud is indeed closer.

Voyager 1, launched in 1977, is currently in the Oort Cloud's inner region and will take about 300 years to fully enter it.

Passing stars can gravitationally nudge Oort Cloud objects, sending them toward the inner solar system as long-period comets.

Dutch astronomer Jan Oort hypothesized its existence in 1950 as a reservoir for comets that take thousands of years to orbit the Sun.

Oort Cloud objects are primarily icy, not rocky, because they formed far from the Sun where water and other volatiles freeze.

Its total mass is estimated at only a few Earth masses, far less than the combined mass of all planets, especially Jupiter.