Albert Einstein's handwritten notes for the theory of relativity are being auctioned in Paris on Tuesday, expected to fetch millions of euros.
General Physics
Nov 23, 2021
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6
The announcement that the Laser Interferometer Gravitational-wave Observatory (LIGO) had detected gravitational waves during the merger of two black holes sent ripples throughout the scientific community in 2016. The earthshaking ...
General Physics
Nov 10, 2021
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162
Physicists at the University of Sussex have discovered that black holes exert a pressure on their environment, in a scientific first.
Astronomy
Sep 10, 2021
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10126
Small modeling errors may accumulate faster than previously expected when physicists combine multiple gravitational wave events (such as colliding black holes) to test Albert Einstein's theory of general relativity, suggest ...
General Physics
Jun 16, 2021
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568
This extraordinary image from the NASA/ESA Hubble Space Telescope of the galaxy cluster Abell 2813 (also known as ACO 2813) has an almost delicate beauty, which also illustrates the remarkable physics at work within it. The ...
Astronomy
Apr 18, 2021
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4006
Observations of galactic rotation curves give one of the strongest lines of evidence pointing towards the existence of dark matter, a non-baryonic form of matter that makes up an estimated 85% of the matter in the observable ...
General Physics
Mar 4, 2021
3
475
Normally, causal influence is assumed to go only one way—from cause to effect—and never back from the effect to the cause—the ringing of a bell does not cause the pressing of the button that triggered it. Now, researchers ...
Quantum Physics
Feb 9, 2021
5
120
A remarkable prediction of Einstein's theory of general relativity—the theory that connects space, time, and gravity—is that rotating black holes have enormous amounts of energy available to be tapped.
General Physics
Jan 13, 2021
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3010
General relativity is a profoundly complex mathematical theory, but its description of black holes is amazingly simple. A stable black hole can be described by just three properties: its mass, its electric charge and its ...
Astronomy
Dec 11, 2020
52
177
Matter is what makes up the universe, but what makes up matter? This question has long been tricky for those who think about it—especially for the physicists. Reflecting recent trends in physics, my colleague Jeffrey Eischen ...
General Physics
Dec 10, 2020
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651
