Scientists report that Earth's 24-hour rotation is not constant, but gradually slowing, suggesting future days may be longer ...

On April 13, 2029, asteroid 99942 Apophis will pass within about 19,800 miles of Earth’s surface, closer than many geostationary satellites. NASA confirms there is no risk of impact for at least 100 ...

Earth's rotation is slowing at a rate of 2.3 milliseconds a century, meaning days could eventually last 25 hours — but ...

Space exploration continues to advance in measured but steady steps. In the midst of the Artemis program, NASA has officially ...

Jessica Watkins to make history with second SpaceX Dragon flight as NASA advances mission timeline to boost space station ...

The idea that a day on Earth always lasts 24 hours feels fixed, which is believed to be permanent. The same rhythm people ...

Nasa's LAGEOS, launched in 1976 as a reflector-covered sphere, continues orbiting Earth and returning laser signals to ground ...