Supergravity is an idea that could unite general relativity with quantum mechanics, and the three physicists who formulated it have now won a $3 million prize for their work Source: https://www.newscientist.com/article/2212449-physicists-who-came-up-with-supergravity-win-3m-breakthrough-prize/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Tag: general relativity
The black hole disk that shouldn’t exist
Astronomers didn’t expect to see a thin disk around the supermassive black hole at the center of galaxy NGC 3147, some 130 million light-years away. They’re using Einstein’s theories of relativity to understand the velocities involved, and the intensity of black hole’s pull. Source: https://earthsky.org/space/black-hole-disk-shouldnt-exist-galaxy-ngc-3147…
Star Orbiting Massive Black Hole Lends Support To Einstein’s Theory
Observations of light coming from a star zipping in orbit around the humongous black hole at the center of our galaxy have provided fresh evidence backing Albert Einstein’s 1915 theory of general relativity, astronomers said on Thursday. From a report: Researchers studied a star called S0-2, boasting a mass roughly 10 times larger than the sun, as it travels in an…
Supercomputer shows ‘Chameleon Theory’ could change how we think about gravity
Supercomputer simulations of galaxies have shown that Einstein’s theory of General Relativity might not be the only way to explain how gravity works or how galaxies form. Source: https://phys.org/news/2019-07-supercomputer-chameleon-theory-gravity.html…
Success with a new theory of gravity
Supercomputer simulations of galaxies show that Einstein’s general theory of relativity might not be the only way to explain how gravity works or how galaxies form. The new Chameleon Theory is a possible alternative. Source: https://earthsky.org/space/chameleon-theory-gravity-alternative-general-relativity…
Astrophysicist Tries Machine Learning To Generate a Black Hole Movie
One of the scientists who worked on the black hole picture is now pursuing an even more ambitious visualization, this time for the super-massive black hole at the center of our own galaxy. Long-time Slashdot reader Esther Schindler shares this report from Hewlett Packard Enterprise’s Insights blog: Lia Medeiros, a physicist, astrophysicist, and National Science Foundation fellow, is working to put…
Today in science: Einstein’s triumph
May 29, 2019, is the 100th anniversary of a total solar eclipse, during which Sir Arthur Eddington observed the bending of light around the sun, thereby proving Einstein’s general relativity theory and catapulting Einstein into rock star fame. Source: https://earthsky.org/human-world/may-29-1919-solar-eclipse-einstein-relativity…
Clocks, gravity and the limits of relativity
A hundred years ago today, Einstein’s theory of gravity was first put to the test when Arthur Eddington observed light “bending” around the sun during a solar eclipse. A century later, scientists are still searching for the limits of the theory. Source: https://earthsky.org/space/clocks-gravity-limits-of-relativity…
Video: 100 years of gravity
One hundred years ago this month, observations performed during a total solar eclipse proved for the first time the gravitational bending of light predicted by Albert Einstein’s new theory of gravity, general relativity. In this video, Günther Hasinger, ESA Director of Science, reflects on this historic measurement that inaugurated a century of exciting experiments, investigating gravity on Earth and in space…
Telescopes in space for even sharper images of black holes
Astronomers have just managed to take the first image of a black hole, and now the next challenge facing them is how to take even sharper images, so that Einstein’s Theory of General Relativity can be tested. Radboud University astronomers, along with the European Space Agency (ESA) and others, are putting forward a concept for achieving this by launching radio telescopes…