A study says that the world is seeing more rain overall, but it's also getting drier. The confounding findings reveal a big ...

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of looks like a giant reptile had shed its skin across the planet’s surface.

Imagine watching a massive star that's been burning steadily for millions of years suddenly dim, fluctuate, and then vanish completely from the night sky. This isn't science fiction. It's happening ...

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New research suggests giant structures beneath Earth's mantle significantly influence the planet's magnetic field over long ...