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In 2019, gravitational wave observatories identified an event known as GW190521 that baffled astronomers. It was initially interpreted as evidence of two black holes merging. But its characteristics ...

The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test ...

Time-varying systems, materials with properties that change over time, have opened new possibilities for the experimental ...

In May 2019, astronomers picked up something strange in the fabric of spacetime. The LIGO and Virgo detectors recorded a ...

New observations of two black holes merging have confirmed predictions made decades ago by Albert Einstein, Stephen Hawking, ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

At the edge of the heliosphere, the solar wind runs up against the interstellar medium, the gas, dust, and radiation in the ...

New research shows that slow oscillations in the brain, which occur during deep sleep and anesthesia, are guided by neuronal excitability rather than structural anatomy.

Abstract: A method is proposed for locating fault on two-terminal transmission lines using traveling-waves from two-ended unsynchronized current measurements. It considers the line length to be ...

New simulations show that neutrino flavor transformations change both the composition and the signals left behind after neutron star collisions. When two neutron stars collide and merge, the result is ...

When two neutron stars collide, they unleash some of the most powerful forces in the universe, creating ripples in spacetime, ...