Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.

Global warming is a looming threat that will require collective action to mitigate, according to experts. While the vast ...

See stunning photos of Earth taken from space by astronauts and robotic spacecraft, celebrating our home planet on Earth Day.

From spectacular devastation to the all-too-human drama wrought by climate change, these movies and television series depicting global warming — or cooling! — have been chosen by THR staffers for ...

Global warming is a looming threat that will require collective action to mitigate, according to experts. While the vast ...

Together, the two exhibitions 'trace our evolving understanding of the weather, from mythology and witchcraft to science and ...

Lyrid meteors were photographed blazing through Earth's atmosphere on the nights surrounding the April 22 peak.

The environmental crises of the past often seem to disappear—have problems like acid rain and smog been solved?

The lunar squares arriving fast and furious on Earth Day could read as red flags: straighten up or else. Or maybe they’re ...

At more than one million degrees, the sun's atmosphere—the corona—is incredibly hot; but not everywhere. Time and again, huge ...

This Earth Day, we reflect on our home planet and look at Earth from space through history. When you purchase through links ...

Mars may have once had an ocean so vast that it covered one-third of the planet before evaporating billions of years ago and ...