February 10, 2017 | Matthew, Contemporary Science Volunteer

I frequently wonder if we're alone in the universe. Researchers have estimated that 100 billion Jupiter-sized planets orbit the centre of our Milky Way galaxy rather than a particular star.

These 'rogue' planets are believed to be formed in planetary systems with two stars, where gravity disrupts the planets' orbits. Astronomers discover faraway planets through observation, but must infer how many have probably been cast out of their orbits.

I enjoy learning about the cosmos because it can tell us more about ourselves and makes me appreciate our home on Earth.

News

211 Likes | No comments

Do you like this story?

Poll

What do you think about this story?



Milky Way galaxy

The Milky Way is estimated to have more than 100 billion stars - many of which might have their own planets.

Enlarge

Image: Flickr/indigoskies

Share your comment

Write as if you were talking to a friend (and maybe in front of your mother!).

Keep it classy, keep it clean and keep your temper.

Comments may be displayed in the gallery as well as on the website - check out our Community Guidelines for more info.

Tags

Popular Posts