JWST observations of galaxy cluster MACS J1149 show gravitational lensing used by CANUCS to study distant low-mass galaxies across a wide range of cosmic time.

This NASA/ESA/CSA James Webb Space Telescope Picture of the Month brings us a scene from the distant universe. Pictured here ...

Astronomers have discovered a vast, dense cluster of massive galaxies just 1 billion years after the Big Bang, each forming ...

The James Webb Space Telescope captured a colorful portrait of a nearby stellar cradle, revealing a wealth of insights about ...

Researchers at the University of British Columbia and Dalhousie University have found a young galaxy cluster that appears far ...

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young cluster that’s hotter than the surface of the sun. More ...

The Beehive Cluster, a group of about 1,000 stars, will be visible to skywatchers throughout January. Here's how to see it in ...

Good news, Oregon skywatchers: A group of about 1,000 stars known as the beehive cluster is swarming a sky near you. Here's ...

One of the oldest known objects in the universe is wandering around the Milky Way. Star cluster M92, a densely packed ball of stars roughly 27,000 light-years from Earth, is about 13.8 billion years ...

A cluster headache, which is also known as histamine headache, is a rare but painful type of headache that affects approximately 1 to 2 people per 1,000 population. It involves several attacks of ...

Cluster feeding is when infants want to feed more frequently than usual. Often, feedings get shorter as well as more frequent. While cluster feeding can happen with both breast and formula feeding, it ...