When studying local galaxy cluster Abell 3667, Anthony Englert GS, a Ph.D. candidate in physics, noticed something unique. Connecting the brightest galaxies in two small clusters within Abell 3667 was ...
Astronomers have discovered a ghostly, million-light-year-long bridge of stars connecting two massive galaxies within the Abell 3667 cluster, 700 million light-years away. This glowing thread of ...
For decades, astronomers assumed that all young star clusters shake off their birth clouds on roughly the same schedule. A ...
Day 3 of the 2025 Space Telescope Advent Calendar: A Galactic Cluster. More than 100 galaxies can be seen in Galaxy Cluster Abell 209, situated about 2.8 billion light-years away. Though they look ...
A recently-discovered powerful cosmic lens, which magnifies profoundly distant objects in space. There are funhouse mirrors in space. Objects in the universe can be so massive — often clusters of ...
Clusters of galaxies represent the most massive bound structures in the Universe, where the high galaxy density and hot intracluster medium foster a variety of processes that drive galactic evolution.
Star clusters arise within the densest cores of molecular clouds, where gravity drives the collapse of gas and dust to form stars nearly simultaneously. Their formation is regulated by the complex ...