For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

The space-based observatory will scan the cosmos in 102 colors we can't see to unlock the secret history of the universe.

Pointed away from Earth about 404 miles overhead, the orbital observatory will circle the planet from north to south about 14 ...

NASA's SPHEREx space observatory has spent the last six weeks undergoing checkouts, calibrations, and other activities to ...

Robot lawnmowers have been around for several decades, and with them the heady promise of spending the summer with your feet ...

A Soviet-era spacecraft meant to land on Venus a half century ago is expected to plunge uncontrolled back to Earth within days.

James is a published author with four pop-history and science books to his name. He specializes in history, strange science, and anything out of the ordinary. Katy is Managing Editor at IFLScience ...

A piece of Soviet hardware built to survive the burning, crushing environment of Venus will soon crash down to Earth and, so ...

The Full or Flower Moon is on May 12. The Moon is Last Quarter, rising at midnight, on May 20. On the 22nd, the waning ...

The SPHEREx observatory won't be the first to map the entire sky, but it will be the first to do so in so ... And spectroscopy can reveal the composition of objects. Using this capability, the mission ...