UC Berkeley physicist Norman Yao first described five years ago how to make a time crystal—a new form of matter whose patterns repeat in time instead of space. Unlike crystals of emerald or ruby, however, those time crystals ...
Quantum Physics
Nov 9, 2021
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2143
Using NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) spacecraft, Russian astronomers have investigated a transient X-ray pulsar known as XTE J1946+274. Results of the study, presented in a paper published October 11 ...
Pulsar timing enables the most stringent tests of fundamental physics. By monitoring the pulse times of arrival (ToAs) of an ensemble of stable millisecond pulsars (MSPs), known as a pulsar timing array (PTA), it is possible ...
Astronomy
May 8, 2024
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78
Ancient, expansive tracts of continental crust called cratons have helped keep Earth's continents stable for billions of years, even as landmasses shift, mountains rise and oceans form. A new mechanism proposed by Penn State ...
Earth Sciences
May 8, 2024
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14
Computational scientists at the Department of Energy's Oak Ridge National Laboratory have published a study in the Journal of Chemical Theory and Computation that questions a long-accepted factor in simulating the molecular ...
Analytical Chemistry
May 7, 2024
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125
Ever wonder what happens when you fall into a black hole? Now, thanks to a new, immersive visualization produced on a NASA supercomputer, viewers can plunge into the event horizon, a black hole's point of no return.
Astronomy
May 6, 2024
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1321
Chemical reactions are complex mechanisms. Many different dynamic processes are involved, affecting both the electrons and the nucleus of the present atoms. Very often, the strongly coupled electron and nuclear dynamics induce ...
Optics & Photonics
May 6, 2024
0
92
When a grave was discovered in Wels 20 years ago, the find was thought to be an early medieval double burial of a married couple and a horse due to its unusual features. Only now could the biological gender and family relationships ...
Archaeology
May 3, 2024
0
194
Think of all the information we get based on how an object interacts with wavelengths of light—aka color. Color can tell us if food is safe to eat or if a piece of metal is hot. Color is an important diagnostic tool in ...
Optics & Photonics
May 2, 2024
0
49
Archaeologists have used advanced lidar technology to discover hundreds of monuments in the famous prehistoric landscape of Baltinglass, Ireland, revealing insights into the ritual activities of the farming communities that ...
Archaeology
Apr 29, 2024
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43
