Repulsive gravity as an alternative to dark energy (Part 1: In voids)
Closing in on Einstein's window to the universe
(Phys.org) —Nearly a century after the world's greatest physicist, Albert Einstein, first predicted the existence of gravitational waves, a global network of gravitational wave observatories has moved a ...
New research shows that gravitational fields around black holes might eddy and swirl
Fasten your seatbelts – gravity is about to get bumpy. Of course, if you're flying in the vicinity of a black hole, a bit of extra bumpiness is the least of your worries. But it's still surprising. The ...
Newly discovered celestial object defies categories
An object discovered by astrophysicists at the University of Toronto (U of T) nearly 500 light years away from the Sun may challenge traditional understandings about how planets and stars form.
Can light orbit a black hole?
Since black holes are the most powerful gravitational spots in the entire Universe, can they distort light so much that it actually goes into orbit? And what would it look like if you could survive and follow ...
Physics duo discover 13 new solutions to Newtonian three-body orbit problem
Photons' journeys across the universe help unravel cosmological mysteries
Why we've got the cosmological constant all wrong
Penn astrophysicists zero in on gravity theory
(Phys.org) -- Most people take gravity for granted. But for University of Pennsylvania astrophysicist Bhuvnesh Jain, the nature of gravity is the question of a lifetime. As scientists have been able to see ...
Physicists propose test for loop quantum gravity
SustainX builds 1.5 MW isotherm compressed air energy storage system
With neutrons, scientists can now look for dark energy in the lab
It does not always take a huge accelerator to do particle physics: First results from a low energy, table top alterative takes validity of Newtonian gravity down by five orders of magnitude and narrows the ...
Space-based experiment could test gravity's effects on quantum entanglement
Study uncovers forces that hold gravity-defying near-earth asteroid together (Update)
Researchers at UT have made a novel discovery that may potentially protect the world from future collisions with asteroids.