Astronomers using the Hubble Space Telescope, the Euclid observatory, and the Subaru Telescope have identified a ghostly galaxy in the Perseus cluster that is roughly 99% dark matter, with visible ...
An international team of researchers led by the Leibniz Institute for Astrophysics Potsdam (AIP) has shed light on a decades-long debate about why galaxies spin faster than expected—and whether this ...
About 85 percent of the matter in the universe is thought to be dark matter, yet there is still no confirmed direct detection of any dark matter particle. Ground-based detectors, space-based ...
An international group of scientists, including Case Western Reserve University Astronomy Chair Stacy McGaugh, has published research contending that a rival idea to the popular dark matter hypothesis ...
The galaxy Messier 33, according to competing models of the universe (left), with a dark matter halo (right) without a bubble of this mysterious "stuff.". | Credit: ESO/S. Brunier New research ...
Modified gravity theories extend or alter Einstein’s general relativity to address observational puzzles such as the accelerated cosmic expansion, the nature of dark matter and dark energy, and ...
Extensions to general relativity have been proposed to account for the accelerated expansion of the Universe without invoking a cosmological constant. Such modified gravity models introduce additional ...
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