L ast month, work began on the world’s first space-based gravitational wave detector. The European Space Agency and partner aerospace companies are developing orbiting, detector spacecraft to observe ...

"One day soon we may be able to see these 'missing' galaxies, which would be hugely exciting and could tell us more about how the universe came to be as we see it today." ...

The only place that's likely to happen is at the very center of our galaxy. And, for a while, there was an excess of ...

A cosmic void could be distorting how we see the universe expand. Sound from the Big Bang may hold the clues. According to astronomers, Earth and the entire Milky Way galaxy might be located within a ...

Scientists discover 3I/ATLAS, a possible 7-billion-year-old comet from deep space. It may rewrite what we know about the ...

There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to ...

"Once you do, it's just spectacular," said Aileen O'Donoghue, astronomer with St. Lawrence University and the Adirondack Sky ...