Death Valley set a record when the temperature reached 134 degrees Fahrenheit. Here’s why deserts can reach such scorching temperatures – and also very cold ones.

Scientists say the effects of extreme space weather on life on Earth may be larger than previously thought.

Humans generate a lot of trash, but there are cheaper and safer ways to handle it than loading it on rockets.

Understanding what happens to Antarctica’s ice matters, because as it melts, sea levels rise, affecting lives and economies around the world.

A new study gives fresh insight into what happens to planets after the death of their star.

SpaceX is poised to test its latest, most powerful rocket and to become a publicly traded company, all while under pressure from environmentalists.