Two buried ‘supercontinents’ hiding inside Earth could be much older than previously thought
Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...
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NASA finds a planet disintegrating faster than astronomers thought possible
Certain extreme planets are called ultra-short period objects if they're very close to their stars and orbit them in mere hours, like K2-22b.
Unusual Martian mounds could help solve one of the red planet’s biggest mysteries
Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.
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What's inside Earth quiz: Test your knowledge of our planet's hidden layers
Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity. Our planet's interior is much too deep and hot to ...