NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for ...

Scientists hope to probe the nature of general relativity through a possible pulsar found in the center of the Milky Way, ...

Hubble catches a spiral galaxy mid-flight, shedding glowing gas as it battles the harsh environment of a nearby galaxy ...

If the pulsar is confirmed, it could enable more precise measurements of the space-time around the galaxy’s central supermassive black hole ...

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

The expansion of the Universe, discovered nearly a century ago by Edwin Hubble, shows that galaxies are moving away from us faster the more distant they are. Yet, our nearest neighbor, the ...

Confirming a pulsar star would enable unprecedented tests of General Relativity. Such a discovery would revolutionize physics ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

Astronomers have uncovered what looks like the sharpest evidence so far that a dense clump of dark matter is lurking ...

Hubble captures a dazzling stellar nursery where newborn stars light up and carve their way through glowing clouds in a ...

The Orion constellation is home to some of the most luminous stars in our Milky Way galaxy. When you purchase through links ...

Andromeda is also a flattened spiral like the Milky Way, but it's twice as large — 220,000 light-years across versus 105,000 for the Milky Way — and crammed with a trillion suns. Can you even begin to ...