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.

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How Lunar Eclipses Work

The only thing that's lurking in the shadows during a lunar eclipse is the moon. When Earth's shadow blocks sunlight from directly illuminating a full moon, you're witnessing a lunar eclipse.


Building Sand Castles on Titan Would Be As Awesome As It Sounds

The strange forces at work on Saturn's largest moon would make for some sweet sand castles.

Mars Has a Magnetosphere Problem. Inflatables Could Help

And solving that issue could go a long way toward making our planetary neighbor habitable.

If Your Laptop or Phone Keeps Crashing, Maybe Blame Cosmic Rays

Energized subatomic particles bombarding Earth from outer space can cause the electronics inside laptops, cell phones and other devices to crash.

NASA Announces New Solar System Packed With Seven Planets

Say hello to the newly discovered TRAPPIST-1 system, which is just 39 light-years away and filled with seven Earth-like planets.

Massive Lunar Lava Tubes Could Become Home for Moon Colonists

Satellites have found evidence of massive underground channels formed by molten rock on the moon. They could be stable enough to house lunar pioneers, a study suggests.

How Supermoons Work

It's a bird, it's a plane, it's supermoon! Aside from being bigger and brighter than a regular moon, does a supermoon affect anything on Earth?

NASA Captures Mesmerizing Footage of Clouds Drifting Above a Distant World

Saturn's largest moon Titan is the only other celestial body we know of that has liquid lakes on its surface. NASA has just captured some amazing footage of clouds.

Ancient Obliteration of Dwarf Planets May Have Created Saturn's Rings

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

Scientists Figure Out How Martian Moon Phobos Got Its 'Death Star' Crater

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 Most Detailed 3-D Sky Map Ever of the Galaxy's 100 Billion Stars

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.