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 ...

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 ...

Juice observed 3I/ATLAS during perihelion, when Earth-based telescopes could not. Spectroscopic observations measured water ...

The Very Large Telescope (VLT) and the Atacama Large Millimeter/submillimeter Array (ALMA) has captured a "violent cosmic ...

Skygazers with binoculars and small telescopes may be able to spot it as a small point of light passing harmlessly through ...

Scientists still don’t know where ghostly particles called neutrinos originate. A distant galaxy could be a potential source.

As Spain prepares for a rare trio of eclipses that begin in August 2026, this stunning city in the path of totality is ...

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

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

It eases my embarrassment somewhat to know that many astronomers have made similar mistakes. My favorite one involves Kat Ross, an astrophysicist at Curtin University in Perth, Australia who studies ...