New reconstructions of 540 million years of climate history show the planet tumbling between icehouse and hothouse states, revealing how rare and vulnerable our temperate moment is.

So if we want real change and a world where future generations of all life, not just human beings, can live in peace with ...

Time crystals, a state of matter once thought physically impossible, could soon be on a banknote.

Government scholars Suzanne Mettler and Trevor Brown both grew up in rural communities—and both were struck by how divided ...