
dark matter



Record-breaking dwarf satellite galaxy of the Milky Way discovered
An international team has found an extremely faint dwarf satellite galaxy of the Milky Way using the Hyper Suprime-Cam (HSC) on the 8.2-metre Subaru Telescope located at the Mauna Kea Observatory on Hawaii. Named Virgo I, the galaxy lies 280,000 light-years away in the constellation of Virgo. The galaxy may well be the faintest satellite galaxy yet found.

New theory of gravity might explain dark matter
Emergent gravity is a new theory that might explain the curious motions of stars in galaxies. It predicts the exact same deviation of motions that is usually explained by invoking dark matter. Professor Erik Verlinde, renowned expert in string theory, publishes a new research paper today in which he expands his groundbreaking views on the nature of gravity.

Supercomputer comes up with profile of dark matter
In the search for the mysterious dark matter, physicists have used elaborate computer calculations to come up with an outline of the particles of this unknown form of matter. The scientists extended the successful Standard Model of particle physics which allowed them, among other things, to predict the mass of so-called axions, promising candidates for dark matter.

The hidden dark side of spiral galaxy NGC 24
This glorious spiral galaxy is known as NGC 24, measures some 40,000 light-years across and lies about 25 million light-years away in the southern constellation of Sculptor. However, there may be more to this picture than first meets the eye: 80 percent of NGC 24’s mass is thought to be held within an invisible dark matter halo.

Massive galaxy discovered made almost entirely of dark matter
An international team of astronomers has discovered a massive galaxy that consists of 99.99 percent dark matter. Even though it is relatively nearby, astronomers had missed the galaxy, named Dragonfly 44, for decades because it is very dim. The galaxy lies about 300 million light-years away in the constellation Coma.

Fifth force of nature could be key to understanding dark matter
Recent findings indicating the possible discovery of a previously unknown subatomic particle may be evidence of a fifth fundamental force of nature. If confirmed by further experiments, this discovery would completely change our understanding of the universe, with consequences for the unification of forces and dark matter.

Fermi space telescope expands its search for dark matter
Dark matter, the mysterious substance that constitutes most of the material universe, remains as elusive as ever. Although experiments on the ground and in space have yet to find a trace of dark matter, six or more years of data from NASA’s Fermi Gamma-ray Space Telescope has broadened the mission’s dark matter hunt using some novel approaches.
