Physicists describe method to observe timelike entanglement
Mathematicians offer unified theory of dark matter, dark energy, altering Einstein field equations
(Phys.org)—A pair of mathematicians—one from Indiana University and the other from Sichuan University in China—have proposed a unified theory of dark matter and dark energy that alters Einstein's equations ...
Scientists investigate the possibility of wormholes between stars
Model describes universe with no big bang, no beginning, and no end
A Newtonian system that mimics the baldness of rotating black holes
(PhysOrg.com) -- The rotating black hole has been described as one of nature's most perfect objects. As described by the Kerr solution of Einstein's gravitational field equations, its spacetime geometry is ...
Expanding universe can emerge in remarkably simple way, scientists say
When soup is heated, it starts to boil. When time and space are heated, an expanding universe can emerge, without requiring anything like a "Big Bang". This phase transition between a boring empty space and ...
Shape from sound: New methods to probe the universe
(Phys.org) —As the universe expands, it is continually subjected to energy shifts, or "quantum fluctuations," that send out little pulses of "sound" into the fabric of spacetime. In fact, the universe is thought to have ...
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, ...
Spacetime ripples from dying black holes could help reveal how they formed
(Phys.org)—Researchers from Cardiff University have discovered a new property of black holes: their dying tones could reveal the cosmic crash that produced them.
Spacetime: A smoother brew than we knew
(Phys.org)—Spacetime may be less like beer and more like sipping whisky.