galaxy cluster

Estimating the Basic Settings of the Universe

The Standard Model describes how the Universe has evolved at large scale. There are six numbers that define the model…

1 month ago

Giant Collision Decouples Dark Matter from Regular Matter

Dark matter is a mysterious and captivating subject. It’s a strange concept and we don’t really have a handle on…

2 months ago

Japan’s New X-Ray Observatory Sees First Light

XRISM, the X-ray Imaging and Spectroscopy Mission, is a joint NASA/JAXA mission led by JAXA. The X-ray space telescope began…

9 months ago

Astronomers Have Recorded the Biggest Explosion Ever Seen in the Universe

Hundreds of millions of light years away, a supermassive black hole sits in the center of a galaxy cluster named…

5 years ago

The Most Distant Star Ever Seen, Only 4.4 Billion Years After the Big Bang

Using the Hubble Space Telescope, a team of astronomers recently imaged the most distant star ever seen in a distant…

7 years ago

Astronomers use a Galaxy Cluster as an Extremely Powerful “Natural Telescope” to Peer Even Farther into the Universe

An international team of astronomers recently discovered a fainter, older galaxy using the most extreme case of the gravitational microlensing…

7 years ago

Astronomers Discover First Mulitiple-image Gravitationally-lensed Supernova

How about four supernovae for the price of one? Using the Hubble Space Telescope, Dr. Patrick Kelly of the University of…

10 years ago

Mapping Dark Matter 4.5 Billion Light-years Away

The Milky Way measures 100 to 120 thousand light-years across, a distance that defies imagination. But clusters of galaxies, which…

10 years ago

Teamwork! Two Telescopes Combine Forces To Spot Distant Galaxy Clusters

Doing something extraordinary often requires teamwork for humans, and the same can be said for telescopes. Witness the success of…

11 years ago

Found! Distant Galaxy Spotted Just 650 Million Years After Big Bang

Peering deep into the universe with the Hubble Space Telescope, a team of researchers have found an extremely distant galaxy.…

11 years ago