Colossal volcanic eruptions like the kind that may have obliterated the dinosaurs more than 65 million years ago are caused ...

We finally know where two giant blobs in Earth's middle layer came from — and they're a mismatched pair. These strange regions in Earth's mantle, known as "large low velocity provinces" (LLVPs ...

Earth may experience another solar storm—and more auroras—in early June as the hyperactive sunspot cluster rotates back into view. Solar Storm Threat Is Back as Giant Sunspot Cluster Reappears ...

A recent study investigating giant "island" structures near Earth's core has deepened the mystery surrounding them: As well as suggesting they are truly ancient structures, the research may alter ...

And the moon really is significant: It's roughly 1.2% the mass of Earth. That may not be big in an absolute sense, but for the solar system, that's huge. No other moon is that large relative to ...

You are gazing on Earth in the Cryogenian period, 700 million years ago. This is about three times as long ago as the earliest dinosaurs roamed—but still not long in the scheme of Earth's mind ...