But before Wednesday’s hand image, Karnick says it wasn’t known if X-rays in space were feasible, due to concerns that natural background radiation from space might affect the quality of the ...

Although we know that supermassive black holes (millions of times the mass of our sun) lurk at the center of most galaxies, ...

A distant galaxy that lay quiet for decades has suddenly stirred, lighting up in dramatic bursts that have caught astronomers ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show!

Although we know that supermassive black holes (millions of times the mass of our Sun ... up in optical images, we triggered follow-up observations using NASA’s Swift X-ray space telescope ...

A sunrise feels like a fresh start, a quiet moment before the world fully wakes up, where everything is still possible and ...

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Although we know that supermassive black holes (millions of times the mass of our Sun) lurk at the centre ... "When we first saw Ansky light up in optical images, we triggered follow-up observations ...

New 'Superman' trailer gives us more Krypto, a better look at the Fortress of Solitude, and a giggling servant robot.

A story that begins with three animals riding in a balloon ends with the discovery of protons impacting our atmosphere with ...