planets

Cool Infographic Compares the Chemistry of Planetary Atmospheres

by Jason Major July 27, 2014

Want to stay on top of all the space news? Follow @universetoday on Twitter Here on Earth we enjoy the nitrogen-oxygen atmosphere we’ve all come to know and love with each of the approximately 24,000 breaths we take each day (not to mention the surprisingly comfortable 14.7 pounds per square inch of pressure it exerts on our […]

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Is Our Solar System Weird?

by Brian Koberlein July 17, 2014

Is our Solar System normal? Or is it weird? How does the Solar System fit within the strange star systems we’ve discovered in the Milky Way so far? Remove this ad Brian Koberlein on Google+

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Why Isn’t the Asteroid Belt a Planet?

by Fraser Cain June 11, 2014

It seems like there’s a strange gap in between Mars and Jupiter filled with rocky rubble. Why didn’t the asteroid belt form into a planet, like the rest of the Solar System? Remove this ad Fraser Cain on Google+

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If the Moon Were Only One Pixel: a Scale Model of the Solar System

by Jason Major March 6, 2014

One of my favorite pet peeves is the inability of conventional models to accurately convey the gigantic scale of the Solar System. Most of us grew up with models of the planets made of wood or plastic or spray painted styrofoam balls impaled on bent wire hangers (don’t tell Mommy), or, more commonly, illustrations on […]

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Playing Marbles With The Planets

by Jason Major February 26, 2014

We’ve all seen charts showing the relative sizes of planets and moons compared to each other, which are cool to look at but don’t really give a sense of the comparative masses of the various worlds in our Solar System. It’s one thing to say the Earth is four times larger than the Moon, it’s […]

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