Could this copycat black hole be a new type of star?
It looks like a black hole and bends light like a black hole, but it could actually be a new type of star.
Astronomy
Apr 18, 2023
2
499
News tagged with gravity theory
Seeing is more than believing: Exploring 'de Sitter space' to explain gravity in the expanding early universe
Having more tools helps; having the right tools is better. Utilizing multiple dimensions may simplify difficult problems—not only in science fiction but also in physics—and tie together conflicting theories.
Quantum Physics
Mar 31, 2023
67
905
Researchers discuss recent quantum computer wormhole model
A recent Nature publication continues to generate headlines over its findings that scientists from the California Institute of Technology developed a model of a traversable wormhole on the Google Sycamore quantum processing ...
Quantum Physics
Dec 22, 2022
1
29
Scientists help probe dark energy by testing gravity
Could one of the biggest puzzles in astrophysics be solved by reworking Albert Einstein's theory of gravity? A new study co-authored by NASA scientists says not yet.
Astronomy
Aug 24, 2022
241
529
A step towards quantum gravity
In Einstein's theory of general relativity, gravity arises when a massive object distorts the fabric of spacetime the way a ball sinks into a piece of stretched cloth. Solving Einstein's equations by using quantities that ...
General Physics
Aug 12, 2022
5
1076
Using holograms to illuminate de Sitter space
Our understanding of the universe may not be expanding as much as the universe itself. In some cases, our theories about cosmic inflation may feel as if they are deflating into a black hole.
General Physics
Jul 20, 2022
0
854
Time might not exist, according to physicists and philosophers, but that's okay
Does time exist? The answer to this question may seem obvious: of course it does! Just look at a calendar or a clock.
General Physics
Apr 14, 2022
393
3900
NASA's Roman mission will test competing cosmic acceleration theories
A team of scientists has predicted the science return from one of NASA's Nancy Grace Roman Space Telescope's groundbreaking planned surveys, which will analyze millions of galaxies strewn across space and time. The mission's ...
Astronomy
Mar 22, 2022
0
482
Dark energy: Neutron stars will tell us if it's only an illusion
A huge amount of mysterious dark energy is necessary to explain cosmological phenomena, such as the accelerated expansion of the Universe, using Einstein's theory. But what if dark energy was just an illusion and general ...
General Physics
Mar 3, 2022
61
2088
What's inside a black hole? Physicist uses quantum computing, machine learning to find out
Dude, what if everything around us was just ... a hologram?
Quantum Physics
Feb 14, 2022
11
2633
