NASA's NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station, has paused ...

The NICER telescope developed a light leak in May 2023 when several thin thermal shields were damaged and let in sunlight that made the telescope useless during daylight hours.

June 24 (UPI) -- The Neutron Star Interior Composition Explorer X-ray telescope has a bad motor that paused its tracking of cosmic objects until NASA engineers can fix it. NASA engineers are ...

I’ve spent much of my long life studying — and trying to understand — the history of the universe. Along the way, I have been constantly reminded that science is essentially international: Science ...

These are rare occurrences—scientists estimate that the giant black hole at the center of our Milky Way galaxy gobbles a star ...

New images taken by NASA's James Webb Space Telescope show young stars forming within a "toe bean" on the Cat's Paw Nebula.

Fifty experts on nuclear physics, particle physics and astrophysics met at CERN from 9 to 13 June to discuss how to use ...

Astronomers from the University of Turku in Finland and elsewhere have performed a broadband spectral and timing study of an ...

Supermassive black holes usually lurk unseen, but when an unlucky star drifts too close they ignite titanic outbursts ...

Binary neutron star mergers, cosmic collisions between two very dense stellar remnants made up predominantly of neutrons, have been the topic of numerous astrophysics studies due to their ...