Four reasons why the quantum vacuum may explain dark matter
One clock with two times: When quantum mechanics meets general relativity
The unification of quantum mechanics and Einstein's general relativity is one of the most exciting and still open questions in modern physics. General relativity, the joint theory of gravity, space and time ...
Escaping gravity's clutches: The black hole breakout
New research by scientists at the University of York gives a fresh perspective on the physics of black holes.
Probing the laws of gravity: A gravity resonance method
Quantum mechanical methods can now be used to study gravity: At the Vienna University of Technology (TU Vienna), a measurement method was developed, which allows to test the fundamental theories of physics.
Physicists investigate fate of five-dimensional black strings
Physicists develop model that pushes limits of quantum theory, relativity
All of the matter in the universe -- everything we see, feel and smell -- has a certain predictable structure, thanks to the tiny electrons spinning around their atomic nuclei in a series of concentric shells or atomic levels. ...
Time travel theory avoids grandfather paradox
Revised theory of gravity doesn't predict a Big Bang
Planck Mission: Space Probe Peers Into Dark Cosmos
(PhysOrg.com) -- Imagine watching the birth of the universe -- the Big Bang -- from the outside. What would you have seen?
Gravity might amplify quantum fluctuations, create astrophysical objects
Einstein equations indicate possibility of black hole formation at the LHC
Quantum Sensor Developed by LSU Researcher Breaks New Limits
(PhysOrg.com) -- Researchers at Louisiana State University have invented an optical sensor that surpasses a quantum limit to sensitivity previously believed to be unbeatable. The breakthrough has a broad array of applications, ...
Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory
Precise Radio-Telescope Measurements Advance Frontier Gravitational Physics
(PhysOrg.com) -- Scientists using a continent-wide array of radio telescopes have made an extremely precise measurement of the curvature of space caused by the Sun's gravity, and their technique promises a ...