planets

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…

7 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)…

7 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…

8 years ago

What are the Different Masses of the Planets?

The planets of our Solar System differ considerably when it comes to their respective masses, even more so than their…

8 years ago

What Are The Diameters of the Planets?

The planets of our Solar System vary considerably, with some being a fraction of Earth's diameter, and others many times…

8 years ago

Thanks, Comet Pluto. Solar System Nomenclature Needs A Major Rethink

Thanks to new data from the New Horizons mission that shows how Pluto behaves as both a planet and a…

8 years ago

Three New Earth-sized Planets Found Just 40 Light-Years Away

Three more potentially Earthlike worlds have been discovered in our galactic backyard, announced online today by the European Southern Observatory. Researchers using the…

8 years ago

Who Discovered Gravity?

Among Sir Isaac Newton's many contributions to science was the discovery of gravity. one of the fundamental forces of the…

8 years ago

How Do We Know There’s a Planet 9?

Are you having trouble keeping track of all the planets in the Solar System? Good news! Astronomers have found evidence…

8 years ago

Icy Hot: Europa’s Frozen Crust Could Be Warmer Than We Thought

All the worlds may be ours except Europa but that only makes the ice-covered moon of Jupiter all the more intriguing. Beneath…

8 years ago