Like the waistband of a couch potato in midlife, the orbits of planets in our solar system are expanding. It happens because the Sun's gravitational grip gradually weakens as our star ages and loses mass. Now, a team of NASA ...
Astronomy
Jan 18, 2018
1
190
By shining a laser along the inside shell of an incandescent light bulb, physicists have performed the first experimental demonstration of an accelerating light beam in curved space. Rather than moving along a geodesic trajectory ...
Three mathematicians have a different explanation for the accelerating expansion of the universe that does without theories of "dark energy." Einstein's original equations for General Relativity actually predict cosmic acceleration ...
General Physics
Dec 14, 2017
160
2955
A team of researchers from the French Aerospace Lab and at the Côte d'Azur Observatory working on France's MICROSCOPE satellite project has further confirmed the equivalence principle by recreating Galileo's free-falling ...
A pulsar is a small, spinning star – a giant ball of neutrons, left behind after a normal star has died in a fiery explosion.
Astronomy
Nov 28, 2017
1
85
The Big Bang theory is the best known and most accepted explanation for the beginning and evolution of the universe, but it is hardly a consensus among scientists.
General Physics
Nov 28, 2017
93
3105
Researchers have hypothesized that the universe contains "dark matter." They have also posited the existence of "dark energy." These two hypotheses account for the movement of stars in galaxies and for the accelerating expansion ...
Astronomy
Nov 22, 2017
52
1009
Researchers have shown how the principles of general relativity open the door to novel electronic applications such as a three-dimensional electron lens and electronic invisibility devices. In a new study funded by the Academy ...
General Physics
Nov 7, 2017
0
24
(Phys.org)—Recent gravitational wave detections have allowed physicists to confirm with greater and greater precision what Einstein predicted over 100 years ago in the theory of general relativity: that gravity does not ...
When Einstein discovered the peer-review process…
Other
Oct 30, 2017
0
2
