A modification of the theory of general relativity makes it consistent with observable astronomical data without the need for dark energy. Since its completion in 1915, Einstein’s theory of general relativity has been the foundation of our understanding of gravity. This theory has passed many experimental tests and is used to explain not only physics …
Newswise – Octopuses have captured the attention of scientists and the public with their remarkable intelligence, including tool use, participation in creative play and problem solving, and even flight from aquariums. Now their acumen can provide a critical link in understanding the evolution of complex life and cognition, including the human brain. An international team …
Octopuses may link the evolution of complex life to genetic ‘dark matter’ Read More »
2D projection of the cosmic web obtained from a supercomputer simulation. Credit: Dr. Ewald Puchwein and the Sherwood-Relics collaboration Dark matter could be made of ultra-light dark photons that have warmed our universe: this is a new scenario proposed in a study recently published in Physical examination letters. This hypothesis, the authors say, is in …
Scientists find new clues that dark matter may be made of dark photons Read More »
Schematic of a generic superconducting nanowire single photon detector. The leads in this study were made entirely of tungsten silicide, with no gold contacts. Credit: S. Kelley/NIST For decades, astronomers and physicists have tried to solve one of the deepest mysteries of the cosmos: around 85% of its mass is missing. Many astronomical observations indicate …
In new studies, researchers explore new ways to hunt dark matter Read More »
The cosmic distance scale, from the solar system to stars to nearby to distant galaxies, is used to measure the Hubble constant. Credit: NASA/ESA/A. Field (STScI)/A. Riess (JHU)) In 1916, Einstein completed his theory of general relativity, which describes how gravitational forces alter the curvature of spacetime. Among other things, this theory predicted that the …
‘Early dark energy’ could explain the crisis in cosmology Read More »
(Top panel) Fit to Doppler parameter distribution and Lyman-alpha forest column density distribution function at z=0.1 assuming a maximum contribution of dark photon heating to linewidths. The contours show the projection of the 68% and 95% intervals for the mass and the mixing parameter of the dark photon. Colors correspond to different assumptions about the …
The sun. Image: NASA via Getty Images ABSTRACT breaks down mind-blowing scientific research, future technologies, new discoveries and major breakthroughs. Physicists have proposed a mind-boggling space mission that could finally reveal the true nature of dark matter, an enigmatic substance considered one of science’s greatest unsolved mysteries, a new study reports. Dark matter is about …
Pixabay. Primordial black holes (PBH) are fascinating cosmic bodies that have been widely studied by astrophysicists around the world. As their name suggests, these are black holes that would have appeared in the early days of the universe, less than a second after the Big Bang. Physics theory suggests that in the split second before …
Study rules out primordial black holes originally clustered as dark matter candidates Read More »
Astronomers estimate that around 85% of all matter in the universe is dark matter, which means that only 15% of all matter is normal matter. Given dark energy, the name astronomers give to the accelerated expansion of the universe, black matter accounts for about 27% of all mass energy in the cosmos, according to CERN …
How much of the universe is made up of dark matter? Read More »
