A sleeping ultramassive black hole, 36 billion times the Sun’s mass, is warping light 5 billion light-years from Earth.

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

Scientists have found strong evidence of a giant gas planet in the nearest star system to our own. At four-and-a-half light ...

The latest observations of 3I/ATLAS suggest it resembles comets from the outer reaches of our solar system, but may be ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into ...