Einstein's gravity theory passes toughest test yet: Bizarre binary star system pushes study of relativity to new limits
(Phys.org) —A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive ...
Light bursts out of a flying mirror
(Phys.org) —An international team of researchers succeeds in generating flashes of extreme ultraviolet radiation via the reflection from a mirror that moves close to the speed of light.
Gravity-bending find leads to Kepler meeting Einstein
(Phys.org) —NASA's Kepler space telescope has witnessed the effects of a dead star bending the light of its companion star. The findings are among the first detections of this phenomenon—a result of Einstein's ...
Long-tailed tits help each other out
Long-tailed tits which lose their eggs or young may help to feed neighbours' chicks, researchers have found. But the degree to which they'll co-operate varies from year to year.
Researchers find it would require 2.4 times less energy to create a black hole than thought
Curtains down for the black hole firewall paradox: Making gravity safe for Einstein again
Research by scientists at the University of York has revealed new insights into the life and death of black holes.
Gravitational telescope creates space invader mirage
(Phys.org)—The NASA/ESA Hubble Space Telescope is one of the most powerful available to astronomers, but sometimes it too needs a helping hand. This comes in the form of Einstein's general theory of relativity, ...
Black hole simulations on XSEDE supercomputers present new view of jets and accretion disks
Voracious absences at the center of galaxies, black holes shape the growth and death of the stars around them through their powerful gravitational pull and explosive ejections of energy.
Researchers explore quantum entanglement
Albert Einstein called quantum entanglement—two particles in different locations, even on other sides of the universe, influencing each other—"spooky action at a distance."
Physics researchers join effort to finally complete quantum theory
An assistant professor of physics at Indiana University-Purdue University Indianapolis (IUPUI) will be among a team of international researchers looking to advance the theory of quantum mechanics, a notion challenged by Albert ...
Researchers create metamaterial that looks similar to 3D Minkowski spacetimes
Spacetime: A smoother brew than we knew
Spacetime may be less like foamy quantum beer and more like smooth Einsteinian whiskey, according to research led by physicist Robert Nemiroff of Michigan Technological University being presented today at the 221st American ...
Dark energy alternatives to Einstein are running out of room
(Phys.org)—Research by University of Arizona astronomy professor Rodger Thompson finds that a popular alternative to Albert Einstein's theory for the acceleration of the expansion of the universe does not ...
A non-causal quantum eraser
Whether a quantum object behaves like a wave or like a particle depends (according to the Copenhagen interpretation) on the choice of measurement apparatus used for observing the system, and therefore on ...