Historians think the 2,000-year-old device was used to predict the positions of celestial bodies. A new digital simulation ...

Amid harsh cuts, the Trump administration has proposed canceling the nearly ready-to-launch Nancy Grace Roman Space Telescope ...

Lucy’s next stop — “the main event,” as Levison calls it — will be the Trojan asteroids that share Jupiter’s orbit around the ...

A rare 'smiley face' triple conjunction is coming to Earth's morning skies on April 25, when Venus, Saturn and the crescent ...

Scientists have spotted a molecule linked to life in the atmosphere of K2-18b using the James Webb Telescope. Here is a look ...