The Solar System

In the Solar System Channel, you can explore the planets and celestial objects around our own sun. Learn about topics such as Mars, Jupiter and the Moon.


The rings of Saturn, Uranus and Neptune may be remnants of smaller planets destroyed long ago by the gas giants' powerful gravity.

How could Phobos withstand the impact that created such a large crater without simply shattering into pieces? A new mathematical investigation answers that question.

The European Space Agency's Gaia satellite observatory has created a 3-D model of the Milky Way — and beyond! — that charts more than a billion stars.

NASA scientists say solar eruptions could have played a role in creating not only friendly environments, but also the building blocks of life itself.

The sun's atmosphere is actually hotter than its surface, even though you'd assume the surface is what generates all that heat. How does that work?

NASA's solar-observation satellite IRIS spotted an instance of this powerful natural electromagnetic phenomenon, and caught it on video.

Radiation from distant galaxies and even black holes travels light years through the universe to have a tiny but measurable impact on humanity.

And if we're going to get technical about it, neither do those of us here on Earth.

A NASA spacecraft captured footage of a comet hurtling toward the sun. And then it got crazy

Heading to the moon? You might want to ask the FAA first.

After a five-year trip, the space probe reaches its destination on a mission to learn about the gas giant's origin and evolution.

The space telescope's ultraviolet observations come days before the Juno space probe will arrive to orbit the gas giant's polar regions.

Could a new space and aeronautics partnership between NASA and the United Arab Emirates Space Agency make Mars a reality within our lifetime?

Decades after archaeologists unearthed King Tut's tomb, we're still talking about the boy-king. This time it's because of his awesome space dagger.

Understanding just how the "tiger stripes" on Enceladus have sustained water eruptions from its global ocean for so long helps us learn more about Saturn's rings.

Reconciling large- and small-scale physics in a new simulation gives us better understanding of our home star.

A massive planet 10 times the size of Earth seems to have been lurking on the edge of our solar system for some time now. How come we never noticed it before?

Pluto may have escaped our notice for a long time in recorded history, but the amazing images from NASA's New Horizons mission have more than made up for that.

Sometimes you can't be afraid to throw an elbow, even if you're a planet.

Mars expert Robert Zubrin looks at the bestselling novel "The Martian"—and the new Matt Damon movie—for hazards interplanetary explorers would face.

When you think about massive, mysterious cosmic bodies like accretion disks, the water swirling around your bathtub probably isn't the first thing to come to mind. But hey, physics works the same magic on all scales.

A billion years ago, the moon stopped being geologically active. But that's not to say that the moon is doing nothing for us. Let's find out why we owe our moon some thank-yous.

Precipitation does fall from the clouds of other planets, but it's a little more exotic than the good, old-fashioned rainwater we get here on Earth. Imagine sheets of methane, sulfuric acid and, yes, even diamonds falling from the sky.

Leash your cheetah, buckle your seatbelt and tell Usain Bolt to take a knee. We're about to power through some of the speediest stuff this universe – both in the real world and in fiction – has to offer.

Do the two meet for one final, fantastic explosion? Or maybe the sun just gets a bit of wind? Or maybe nothing of consequence happens at all? Only one way to find out.