NASA is set to broadcast a live news conference on Monday, April 28, at 2 p.m. EDT, in which astronaut Don Pettit will ...

NEW YORK — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

After a lifetime of helping others see eclipses, Fred Espenak recently announced he is in hospice care for a chronic lung ...

Welcome to Smartphone Picture of the Week! Each week, we select and share your best smartphone photos in an online feature ...

Plan your visit to Abu Dhabi's top museums, where you can explore fascinating art, culture, and history in a city rich with ...

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ...

Eric Philips speaks to ExplorersWeb about his three and a half days orbiting the Earth, including how they slept and what ...

"Before Hubble, no generation ever had access to unimaginably vibrant views of space, stretching almost all the way back to ...

The photos capture both our neighboring planets and galaxies far, far away in a stunning release to celebrate one of NASA’s ...

China's Shenzhou-20 mission is carrying three astronauts to the Chinese space station, as Beijing takes steady steps toward ...