Gamma-ray bursts (GRBs) are among the most powerful explosions in the universe, second only to the Big Bang. The majority of ...

NASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system. NASA's Hubble ...

Leading X-ray space telescopes XMM-Newton and XRISM have spotted a never-seen-before blast from a supermassive black hole. In ...

Pandora Mission will attempt to capture the atmospheric conditions of 20 planets as they eclipse their respective suns, an ...

Early on Thursday, Dec. 25, severe winds gusting up to 114 miles per hour tore loose half of the shutter on the 140-year old ...

In 2015, NASA celebrated the Hubble Space Telescope’s 25th year in orbit by releasing one of its most stunning images to date—a colorful star cluster in the constellation Cari ...

The Roman Space Telescope is one of NASA's next great observatories, designed to explore some of the biggest questions in ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...

Scientists atop Mauna Kea on the Island of Hawai’i and across the Hawaiian chain are turning their telescopes skyward Friday ...

Interstellar comet 3I/ATLAS shows a rare sun‑facing anti‑tail, raising concerns that survey telescopes miss exotic visitors ...

A dozen luminous blue outbursts were thought to be unusual supernovae. A new outburst, the brightest yet, suggests it's ...