News

Research

Scientists use Exotic Stars to Tune into Hum from Cosmic Symphony

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

An illustration depicts colliding black holes causing waves in spacetime

ScienceNews

A star cluster in the Milky Way appears to be as old as the universe

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...

ESA/HUBBLE, NASA, GILLES CHAPDELAINE

Announcements

Gabriele Montefalcone Awarded Summer Graduate Fellowship

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

A young man in a white t-shirt is shown in a graphic circle

NewScientist

What the huge young galaxies seen by JWST tell us about the universe

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...

Images of six galaxies, seen 500-800 million years after the big bang, captured by the James Webb Space Telescope: NASA, ESA, CSA, I. Labbe, G. Brammer

LIGO Caltech

LIGO Ready to Explore Secrets of the Universe

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

hireslivingston_5.jpg

Discover Magazine

JWST Images Challenge Galaxy Formation Theories

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...

Credit: NASA/ESA/CSA/STScI

Research

James Webb Space Telescope Images Challenge Theories of How Universe Evolved

Hefty young galaxies defy the reigning model of cosmology, called "dark energy + cold dark matter" or ΛCDM.

Six candidate galaxies

National Geographic

The most ancient galaxies in the universe are coming into view

The James Webb Space Telescope is discovering distant clusters of stars that formed surprisingly early—presenting new mysteries about how the universe evolved.

Using the James Webb Space Telescope, scientists have peered back into the primordial universe and discovered galaxies that existed when the universe was only 300 to 400 million years old.

Research

Cosmic Dawn III Recreates the Early Universe Epoch of Reionization in Unprecedented Detail

Scientists create the most detailed and accurate simulation ever produced of the first billion years of the universe.

Hot spots appear prominent on a mass of lines that interconnect as in a network

Announcements

Theoretical Astroparticle and Cosmology Symposium Held

The inaugural TACOS event was organized by The University of Texas at Austin's Kimberly Boddy & held at Southern Methodist University.

A cosmic scene showing stars and dense clouds of gas in galaxies