As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

For now, life is flourishing on our oxygen-rich planet, but Earth wasn't always that way – and scientists have predicted that ...

Known as the Great Dying, the mass extinction that ... anywhere near those conditions again, because (Earth back then) was a ...

A nearly 98 percent chance it won’t hit us is pretty good. Second, while that’s definitely a massive rock, it’s not like a ...

MIT researchers estimate one planet, BD+05 4868Ab, is losing mass at a rate of 10 Earth masses per billion years. Since it’s roughly moon-sized, its total destruction is imminent—within a few ...

As its satellites and others burn up in our atmosphere, their magnetized "dust" could pollute our atmosphere and weaken our planet's magnetic ... up to 400 miles above Earth — "and it could ...

For months I'd been on the trail of the greatest natural disaster in Earth's history. About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet ...

Based on the novel by Walter Tevis, the show tells the story of an alien who comes to Earth and must blend in with humanity in order to save his dying planet. The book was famously adapted to the ...