Telescopes 4 inches or less in diameter are portable, easy to use, and great beginner instruments. Here, I’ll walk through ...

After 30 years of observing, I’ve compiled a list of some of my favorite deep-sky objects. These look best with a large ...

Unlike major telescopes such as Hubble Space Telescope or James Webb Space Telescope, Swift was built for speed.

Views of a massive galaxy cluster Abell 2256 have been captured by NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and ...

Overview A good telescope helps you enjoy the Moon, planets, and stars in much greater detail.Beginners should choose simple ...

The agency has partnered with startup Katalyst Space Technologies to launch a robotic spacecraft that will capture the Swift ...

JWST and radio interferometry caught six massive galaxies colliding 12 billion years ago, while a young supermassive black ...

Days before America's 250th birthday, columnist Suzie Dills shares a peek at how early Americans used planets and ...

A galaxy seen almost edge-on, wrapped in thick lanes of dust and glowing with unusually intense star formation, has long ...

A high-stakes mission to save NASA's Swift Observatory from a fiery end has relied on Arizona. Here's an inside look ahead of ...

A high-stakes mission to save NASA's Swift Observatory from a fiery end has relied on Virginia. Here's an inside look ahead ...

Gamma-ray burst GRB 260623A was detected by NASA’s Fermi telescope morning at 12:56 UTC Tuesday, triggering a global ...