Distance scales from the Planck length to a 93-billion-light-year observable universe expose extreme limits of physics and ...

Astronomers have recorded the most luminous flare ever emitted by a black hole—an event so extreme it briefly outshone the ...

Black holes, regions of spacetime in which gravity is so strong that nothing can escape, are intriguing and extensively ...

Scientists estimate over 100 billion galaxies in the universe, each unique in shape and size, revealing the vastness of cosmic creation.

An analysis of millions of galaxies found that the universe is barreling towards what is literally a much darker future.

Scientists have long held that the universe is expanding at an ever-increasing rate, driven by a mysterious but measurable ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have unveiled a new catalog of massive galaxy clusters, revealing insight on the ...

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be ...

Scientists have released a new study that catalogues the universe by mapping huge clusters of galaxies. These clusters are some of the largest known objects in the universe — and they can help ...

Evidence suggests the universe’s expansion has started to slow, not accelerate. The results imply dark energy is weakening ...