Improved Method for Estimating the Hubble Constant with Gravitational Waves

There’s a big debate in cosmology about how fast the universe is currently expanding.

Artist illustration of two blue-white objects colliding in space with jets of what material spraying outward

Gravity Research Foundation

Fischler Wins Gravity Research Foundation Essay Award

Willy Fischler won the 2024 GRF Essay Award for "Holographic Inflation, Primordial Black Holes and Early Structure Formation."

Illustration of a supermassive black hole wth millions to billions times the mass of our sun. Image credit: NASA/JPL-Caltech


QnAs with Katherine Freese

Katherine Freese is interviewed for PNAS by Paul Gabrielsen about dark matter and dark energy.

Photo by Marcia Rosengard


2024 Weinberg Memorial Lecture

Dr. James Peebles, winner of the 2019 Nobel Prize in Physics, joins the Weinberg Institute at UT Austin's Physics Department to present "The Expanding Universe...

2024 Weinberg Memorial Lecture


Is Cosmology in Crisis?

A panel of physicists and astronomers grapple with possible cracks in our modern creation myth, the standard model of cosmology.

A dramatic spiral galaxy with orange and red arms and a light blue center


Postcards from the Field: First Light for a New High-Desert Telescope

Scientists at the Simons Observatory in Chile, including Katie Freese and Nick Galitzki, probe the cosmic microwave background for clues about the history of the...

A telescope enclosure sits in front of two mountains under a blue sky

Fox 7

Total Eclipse of the Horns

UT Austin's Julian Munoz, assistant professor of astronomy, talked about the total eclipse with a local TV station.

Professor Muñoz on Fox 7

2024 Isaac Asimov Memorial Debate

Did the James Webb Space Telescope Change Astrophysics? | 2024 Isaac Asimov Memorial Debate

Join Neil deGrasse Tyson,  the Frederick P. Rose Director of the Hayden Planetarium, and a panel of leading scientists, including Prof. Mike Boylan-Kolchin, for a...



LIGO, VIRGO and KAGRA Observing Run Plans

The LIGO-Virgo-KAGRA Collaborations (LVK) prepare to resume their fourth observing run, including UT's Chen, Shoemaker and Zimmerman.

UT News

What Can A Total Solar Eclipse Teach Us About Our Universe?

The total solar eclipse on April 8 will be a once in a lifetime opportunity to witness a truly awesome cosmological marvel. You don’t need...

An image of a total solar eclipse