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"They're big puffy beasts," said Katherine Freese, a theoretical astrophysicist at the University of Texas at Austin and senior author of the research published in...

The universe exists on scales of time and distance that lie entirely outside the range of human experience. It is dominated by two substances—dark matter...

Stars powered with dark matter still need proving but could reveal clues about the nature of one of the universe’s great mysteries.

Katherine Freese published her inaugural article for the Proceedings of the National Academy of Sciences

A team of astrophysicists has found evidence for gravitational waves that oscillate with periods of years to decades.

One way around that tension is to accept a different age for the universe, says cosmologist and study coauthor Mike Boylan-Kolchin of the University of...

Physics graduate student Gabriele Montefalcone received the 2023 Weinberg Institute/TCCAP Graduate Fellowship.

Not enough time had elapsed to have brought together that amount of matter and turned it into this many stars. At the time, Mike Boylan-Kolchin...

The fourth observing run of the global gravitational wave network begins. UT Austin hosts a large LIGO group: Professors Chen, Laguna, Shoemaker, and Zimmerman

Mike Boylan-Kolchin, an astronomer from the University of Texas at Austin, says that scientists now think we're seeing galaxies from as early as 13.48 billion...