The metric might not mean much to laypeople, but leap seconds have been a source of contention in the timekeeping community for years. Now, they’re dead.

Seven of 16 planetary vital signs are in their most extreme state ever recorded, and El Niño is here to make matters even worse.

Tropical Storm Isaias is set to become the basin’s first hurricane of the season, bringing life-threatening rain and storm surge to the Gulf Coast.

Atoco’s new machines use specialized materials that can harvest water from some of the driest air on Earth without using electricity.

Startup Star Catcher is launching a system that, if successful, would be the first time energy has been beamed between two separate spacecraft.