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After months of thorough analysis, two international scientific teams, including scientists from The University of Texas at Austin, have released an updated catalog of gravitational wave detections, more than tripling the number of confirmed events. Each detection of a gravitational wave represents the discovery of a pair of extremely massive objects—black holes or neutron stars—far out in the universe smashing into each other, shaking the very fabric of space and time so much that sensitive detectors on Earth could feel them, sometimes more than a billion years later. 

The University of Texas at Austin with support from the U.S. Department of Energy will expand capabilities of the Texas Petawatt Laser, one of the highest-powered lasers in the world, with a broad range of applications for basic research, advanced manufacturing and medicine.

When scientists first detected gravitational waves, from the violent collision of two black holes 1.3 billion years in the past, the ripples in space-time made a distinctive chirp, followed by a signal like a ringing bell. (The signals actually had to be converted into frequencies we can hear.) Since that first detection in 2015, every black hole collision has sounded pretty much the same. But according to a new study based on computer simulations, black holes actually sing a more elaborate swan song.

Many of the decisions we make are now guided by computational simulations, from designing new spacecraft to predicting the spread of a pandemic. But it's not enough for a simulation model to just issue predictions. A decision-maker needs to know just how much those predictions can be trusted.

Quantum computers might someday make it possible to run simulations that are far too complex for conventional computers, enabling them for example to precisely model chemical reactions or the movement of electrons in materials, yielding better products from drugs to fertilizers to solar cells. Yet at the current pace of development, quantum computers powerful enough for these simulations may still be many years away.

An elite prize among scientists worldwide is being given to Steven Weinberg, a professor of physics at The University of Texas at Austin, for his "continuous leadership in fundamental physics, with broad impact across particle physics, gravity and cosmology, and for communicating science to a wider audience."

Allan MacDonald, a professor of physics at The University of Texas at Austin, has received the 2020 Wolf Prize in Physics for his groundbreaking work in a field known as twistronics, which holds extraordinary promise to "lead to an energy revolution," according to the Wolf Foundation announcement today.

The American Association for the Advancement of Science, the world's largest general scientific society, has named Mark Raizen, a professor in the Department of Physics, a 2019 AAAS Fellow.

If you wanted to deliver a package across the street and avoid being hit by a car, you could program a powerful computer to do it, equipped with sensors and hardware capable of running multiple differential equations to track the movement and speed of each car. But a young child would be capable of doing the same task with little effort, says Alex Demkov, professor of physics at The University of Texas at Austin.

Biofilms – tightly packed sticky blobs of many bacteria – are a huge problem in the medical world. Biofilms can form on joint replacements and medical equipment, they cause long-term infections in lungs and urinary tracts, and, according to Centers for Disease Control estimates, are responsible for 1.7 million infections in U.S. hospitals every year – and 99,000 deaths.

Last year, scientists demonstrated that twisted bilayer graphene — a material made of two atom-thin sheets of carbon with a slight twist — can exhibit alternating superconducting and insulating regions. Now, a new study in the journal Nature by scientists from Spain, the U.S., China and Japan shows that superconductivity can be turned on or off with a small voltage change, increasing its usefulness for electronic devices.

Feliciano Giustino recently joined the University of Texas at Austin faculty in the Department of Physics and is a Moncrief Chair in the Oden Institute for Computational Engineering and Sciences, where he will direct the Center for Quantum Materials Engineering. He was previously a professor in the Department of Materials at Oxford University.

This summer the Department of Physics welcomed an astrophysicist whom Global Citizen put on a list of the "17 Top Female Scientists who have Changed the World," alongside names like Jane Goodall and Marie Curie.

As computers advance, encryption methods currently used to keep everything from financial transactions to military secrets secure might soon be useless, technology experts warn. Reporting today in the journal Nature, a team of physicists and engineers led by University of Texas at Austin physics professor Xiaoqin Elaine Li report they have created a material with light-emitting properties that might enable hack-proof communications, guaranteed by the laws of quantum mechanics.

Over the past few decades, the cost of storing data on hard disk drives (HDDs) has fallen dramatically, enabling revolutions in personal, scientific and cloud computing and allowing for storage of ever-greater amounts of data. But even as data collection continues to skyrocket, the cost-per-bit trend has been flattening out, leading to calls for new innovations in technology.