Scientists think they found evidence of weird ancient stars called "dark stars" that are powered by dark matter instead of ...

I’ve spent much of my long life studying — and trying to understand — the history of the universe. Along the way, I have been constantly reminded that science is essentially international: Science ...

This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

New research is shedding light on what researchers call "lite" intermediate-mass black holes, which are smaller, but still ...

Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

The Hubble Space Telescope is making waves again, this time for a snapshot of a spiral galaxy located 250 million light-years ...

The discovery, made with the LOFAR (LOw Frequency ARray) radio instrument in Europe, indicates that galaxy clusters, which ...

These black holes are the most distant and stable objects we know. Using a technique called very long baseline interferometry ...

NASA's Chandra X-ray Observatory provides a new look at the Andromeda galaxy in this multi-wavelength image that includes ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

How does the camera on the James Webb Space Telescope work and see so far out? – Kieran G., age 12, Minnesota Imagine a camera so powerful it can see light from galaxies that formed more than 13 ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor.