Explainer: What is mass?
When it comes to electrons, Higgs bosons or photons, they don't have much going for them. They possess spin, charge, mass and … that's about it.
General Physics
Nov 12, 2015
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Page 5 - News tagged with gravitational forces
In search of the ninth planet
A University of Michigan doctoral student has logged two pieces of evidence that may support the existence of a planet that could be part of our solar system, beyond Neptune.
Astronomy
Oct 17, 2017
12
490
Subaru telescope helps determine that dark matter is not made up of tiny primordial black holes
An international team of researchers has put a theory speculated by the late Stephen Hawking to its most rigorous test to date, and their results based on the observations using the Subaru Telescope have ruled out the possibility ...
Astronomy
Apr 2, 2019
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Researchers remeasure gravitational constant
The gravitational constant G determines the strength of gravity—the force that makes apples fall to the ground or pulls the Earth in its orbit around the sun. It is part of Isaac Newton's law of universal gravitation, which ...
General Physics
Jul 11, 2022
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1009
Research concludes there is no 'simple theory of everything' inside the enigmatic E8
The "exceptionally simple theory of everything," proposed by a surfing physicist in 2007, does not hold water, says Emory University mathematician Skip Garibaldi.
General Physics
Mar 26, 2010
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Researchers estimate the mass of the Milky Way to be 890 billion times that of our sun
An international team of researchers has used sophisticated models to calculate the mass of the Milky Way. They have written a paper describing their efforts and results, and have posted it on the arXiv preprint server.
Extended tests with levitated force sensor fail to find evidence of fifth force
A team of researchers from Nanjing University, working with two colleagues from the University of Science and Technology of China, has conducted new tests of the chameleon theory and report a failure to find any evidence ...
New planet discovered in Trinary star system
Until recently, astronomers were highly skeptical of whether or not planets should be possible in multiple star systems. It was expected that the constantly varying gravitational force would eventually tug the planet out ...
Astronomy
Jul 14, 2011
4
0
Exploring quantum gravity and entanglement using pendulums
When it comes to a marriage with quantum theory, gravity is the lone holdout among the four fundamental forces in nature. The three others—the electromagnetic force, the weak force, which is responsible for radioactive ...
Quantum Physics
Sep 7, 2021
2
700
Researchers prepare for quantum sensing in outer space
As part of a new NASA Quantum Pathways Institute consisting of a multi-university research team, UC Santa Barbara professor of electrical and computer engineering Daniel Blumenthal will help to build technology and tools ...
Quantum Physics
Mar 16, 2023
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