As an astronomer, there is no better feeling than achieving "first light" with a new instrument or telescope. It is the culmination of years of preparations and construction of new hardware, which for the first time collects ...
Astronomy
Oct 29, 2019
27
232
Quantum mechanics and the general theory of relativity form the bedrock of the current understanding of physics—yet the two theories don't seem to work together. Physical phenomena rely on relationship of motion between ...
Quantum Physics
Sep 19, 2019
4
2384
Scientists have discovered that a mysterious pressure dubbed "dark energy" makes up about 68% of the total energy content of the cosmos, but so far we don't know much more about it. Exploring the nature of dark energy is ...
Astronomy
Sep 13, 2019
4
239
Researchers have, for the first time, identified the sufficient and necessary conditions that the low-energy limit of quantum gravity theories must satisfy to preserve the main features of the Unruh effect.
Quantum Physics
Aug 8, 2019
0
1558
Einstein's theory of general relativity predicts the existence of dark energy—a mysterious form of energy that permeates space and accelerates the expansion of the Universe. But what if Einstein was wrong and there was ...
General Physics
Aug 2, 2019
112
389
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.
Astronomy
Jul 8, 2019
38
6092
Information and gravity may seem like completely different things, but one thing they have in common is that they can both be described in the framework of geometry. Building on this connection, a new paper suggests that ...
A pair of researchers, one at the Massachusetts Institute of Technology (MIT) and another at California Institute of Technology (Caltech) and the University of Tokyo, have recently investigated a set of old conjectures about ...
The International Space Station will host the most precise clocks ever to leave Earth. Accurate to a second in 300 million years the clocks will push the measurement of time to test the limits of the theory of relativity ...
General Physics
May 23, 2019
1
572
No Shadow of a Doubt, a new book by Daniel Kennefick, associate professor of physics at the University of Arkansas, tells the story of two research teams, organized by Arthur Stanley Eddington and Sir Frank Watson Dyson, ...
General Physics
Apr 19, 2019
1
50
