planets

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

How Much Stuff is in a Light Year?

Determining how much stuff is a single light year is daunting, considering how big the Milky Way is. But doing…

5 years ago

How Big is Saturn?

Saturn is the second largest planet in the Solar System, so big that you could fit Earth inside it 763…

5 years ago

Four Candidates For Planet 9 Located

A concentrated three-day search for a mysterious, unseen planet in the far reaches of our own solar system has yielded…

5 years ago

Get Ready For The >100 Planet Solar System

If a new definition of planet is adopted by the International Astronomical Union, our Solar System could be home to…

5 years ago

Planet 9 Can’t Run Forever. Two Asteroids Give Up Some Clues

Last year, Caltech astronomers Mike Brown and Konstantin Batygin found indirect evidence for the existence of a large planet in…

5 years ago

Weekly Space Hangout – January 13, 2017: News Roundup Plus Update on Tabby’s Star!

Host: Fraser Cain (@fcain) Guests: Carolyn Collins Petersen (thespacewriter.com / space.about.com / @spacewriter ) Paul M. Sutter (pmsutter.com / @PaulMattSutter)…

5 years ago

What are the Planets of the Solar System?

The eight planets of the Solar System are a diverse and interesting bunch, ranging from airless and habitable terrestrial bodies…

6 years ago