Did You Know?

There’s a planet made largely of diamonds.

55 Cancri e, a super-Earth about 40 light-years away, is likely made largely of carbon under such extreme pressure that much of it has crystallized into diamond. Scientists estimate that up to one-third of the planet's mass could be diamond, making it worth an estimated $26.9 nonillion ($26.9 followed by 30 zeros).

Did You Know?

The Sun contains 99.86% of all the mass in our solar system.

Despite the planets, asteroids, comets, and other objects in our solar system, almost all the mass is contained...

Read more: The Sun contains 99.86% of all the mass in our solar system.

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There’s a planet covered in lava oceans with winds seven times the speed of sound.

K2-141b is a planet so hot that it has oceans of molten rock and supersonic winds made of...

Read more: There’s a planet covered in lava oceans with winds seven times the speed of sound.

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There’s a planet covered in burning ice.

Gliese 436 b, a Neptune-sized exoplanet, is covered in a form of water ice that remains solid despite...

Read more: There’s a planet covered in burning ice.