Earth will become too hot to handle in a billion years. There's a (very) remote chance a passing star could save us by knocking our planet back into the habitable zone.

With ecosystems in crisis, engineers and scientists are teaming up to decipher what animals are saying. Their hope: By truly listening to nature, humans will decide to protect it.

A blast of X-rays from a nuclear explosion should be enough to save Earth from an incoming asteroid, according to the results of a first-of-its-kind experiment. The findings, published 1 on 23 ...