Every second, the Earth spins at an incredible speed, completing a full rotation in just 24 hours. While this may seem ...
Earth’s rotation is slowly slowing, scientists say, meaning days are getting longer, though the change takes millions of ...
Time will stop on June 30, but don't worry: It will only be for a second. Researchers will add a sliver of time—a leap second—to the world's clocks. Just as leap years keep our calendars lined up with ...