planets

Astronomers Find a Planet That Orbits its Star in Just 16 HOURS!

Mercury is the speed champion in our Solar System. It orbits the Sun every 88 days, and its average speed…

2 months ago

Here are Hubble’s 2021 Photos of the Outer Solar System

If we had to rely solely on spacecraft to learn about the outer planets, we wouldn't be making great progress.…

2 months ago

In the Far Future, Stellar Flybys Will Completely Dismantle the Solar System

Consumption and disintegration. Next time you want to be the life of the party—if you're hanging out with cool nerds…

1 year ago

A Rogue Earth-Mass Planet Has Been Discovered Freely Floating in the Milky Way Without a Star

If a solar system is a family, then some planets leave home early. Whether they want to or not. Once…

1 year ago

Check Out How Big the Planets and the Moon Will be in Our Sky Over the Next Two Years

Everything in space is moving. Galaxies collide and merge, massive clouds of gas migrate, and asteroids, comets, and rogue planets…

1 year ago

Sunrises Across the Solar System

Scientists have learned a lot about the atmospheres on various worlds in our Solar System simply from planetary sunrises or…

1 year ago

The Strange, Misshapen Orbits of Planet-Forming Disks in a Triple-Star System

Whatever we grow up with, we think of as normal. Our single solitary yellow star seems normal to us, with…

1 year ago

Are the Gaps in These Disks Caused by Planets?

Astronomers like observing distant young stars as they form. Stars are born out of a molecular cloud, and once enough…

2 years ago

Ep. 523: Judging Age & Origins, Pt. 2 Across the Solar System

Today we push our aging curiosity out into the Solar System to ask that simple question: how old is it…

3 years ago

Why Are Planets Round?

Why are the planets round? For that matter, why are all the big objects in the Universe this shape? The…

5 years ago