According to findings by physicists at Goethe University Frankfurt, a gravastar could look like a matryoshka doll. Credit: Daniel Jampolski and Luciano Rezzolla, Goethe University…
Posts published in “General Relativity”
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Einstein’s general relativity explains gravity as the result of spacetime curvature due to mass, contrasting with magnetism’s dual ability to attract and repel. This theory…
Princeton researchers have found that the M87* black hole expels energy outward, contributing to the formation of massive jets. This discovery, rooted in Einstein’s theory…
An artist’s representation of matter in the early universe slowly coalescing into large cosmic structures in the late universe. Credit: Minh Nguyen, University of Michigan…
Large High Altitude Air-shower Observatory (LHAASO) illustration. Credit: LHAASO Researchers from the Institute of High Energy Physics of the Chinese Academy of Sciences examined the…
JILA physicists have measured Albert Einstein’s theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that…
One of the major issues in general relativity that separates it from other descriptions of the universe, like quantum physics, is the existence of singularities.…
Illustration of two orbiting black holes warping spacetime and generating gravitational waves. Published in Nature Astronomy the work which shows the unprecedented accuracyHow close the…
Researchers have conducted a 16-year long experiment to challenge Einstein’s theory of general relativity. The international team looked to the stars — a pair of…
Researchers have conducted a 16-year long experiment to challenge Einstein’s theory of general relativity. The international team looked to the stars — a pair of…
A representation of the evolution of the universe over 13.77 billion years. The far left depicts the earliest moment we can now probe, when a…
Cupermassive black hole with an X-ray jet. Credit: NASA/CXC/M.Weiss Further confirmation of Einstein’s theory of general relativity. The galaxy Messier 87 (M87) is located 55…
Illustration of how light echoes from behind a black hole. Credit: ESA For the first time, astronomers have singled out light coming from behind a…
Researchers observed bright flares of X-ray emissions, produced as gas falls into a supermassive black hole. The flares echoed off of the gas falling into…
A Penn State scientist studying crystal structures has developed a new mathematical formula that may solve a decades-old problem in understanding spacetime, the fabric of…
The source’s light reaches the earth through multiple paths. When the lens is off-center, one path is shorter. Variations from the source will arrive at…
Credit: ESA/Hubble & NASA, S. Allam et al. This NASA/ESA Hubble Space Telescope image features the galaxy LRG-3-817, also known as SDSS J090122.37+181432.3. The galaxy,…
Still from an animation of the inspiral of a binary black hole with a 128:1 mass ratio showing the beginning of the final burst of…
Quantum mechanics allows for a clock to move as if it were simultaneously traveling at two different speeds. New research finds that this leads to…
Star orbiting supermassive black hole. Credit: Nicolle Fuller/National Science Foundation Over one hundred years ago, on May 29, 1919, astronomers observed a total solar eclipse…