The Universe holds many mysteries, and among the most intriguing is dark matter, an invisible component that is thought to represent about 85% of all cosmic matter. Although it neither emits nor ...

Scientists using a global array of radio telescopes have detected the universe’s lowest-mass dark object by observing how it warped light through gravitational lensing. The invisible mass, about a ...

Although mass is the most important property of stars, it has proved very hard to measure for the lowest mass objects in the universe. Thanks to a powerful new camera, a very rare, low-mass companion ...

EVANSTON, Ill. (CBS) -- Northwestern University astrophysicists were among those involved in an international research collaboration that has detected a gravitational-wave signal caused by a merger of ...

I've been trying to explain quantum physics, forces, relativity, and space-time to my kid and we had a question that I'm finding difficult to find a solid answer to. Background you can skip if you ...

Using the James Webb Space Telescope (JWST), astronomers recently discovered a new type of celestial object in the star-birthing region closest to Earth that could challenge existing theories of how ...

The 3I/ATLAS interstellar object has sparked worldwide scientific interest because of its extraordinary size, mass, and unusual trajectory. Recent studies reveal that it is far larger and more massive ...

Speed can make objects act as if they have more mass, but can you ever make an object appear to have less mass? It’s true that speeding an object up to considerable fractions of the speed of light ...