A 3D map of planet WASP-18b reveals extreme heat zones and broken water vapor in its atmosphere for the first time.

As the shutdown continues into its second month, many federal employees are furloughed. Some, however, keep working (mostly ...

The current March to November system that the U.S. follows began in 2007, but the concept of "saving daylight" is much older.

Shenzhou-21 mission docks at Tiangong after a 3.5 hour chase, carrying three astronauts and four lab mice to begin six months of experiments and spacewalks.