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1,000+ results for "Dark Matter"

Astronomers see star explode 4 times

Astronomers have observed a distant star exploding four times due to a massive galaxy cluster, providing a rare opportunity to test Albert Einstein's General Theory of Relativity. The discovery also offers clues about the strength of gravity, dark matter, and dark energy in the universe.

SourceAustralian National University·JournalScience·DateMar 5, 2015

Curious signal hints at dark matter

A team of scientists from the University of Leicester has detected a curious signal in the X-ray sky that could be the first direct indication of dark matter. The signal appears to be consistent with the prediction of axions, particles believed to make up a significant portion of the universe's mass.

SourceUniversity of Leicester·JournalMonthly Notices of the Royal Astronomical Society·DateOct 16, 2014

Reinterpreting dark matter

A team of researchers, led by Tom Broadhurst, has reinterpreted cold dark matter as a Bose-Einstein condensate, proposing that it governs the formation of the universe's structure. The theory predicts galaxies formed relatively late and could explain puzzling cores in dwarf galaxies.

SourceUniversity of the Basque Country·JournalNature Physics·DateSep 17, 2014

Taking astronomy to the next level

The Large Synoptic Survey Telescope (LSST) will image the entire visible sky twice per week, providing a vast amount of information on short-lived transient events, dark matter, and dark energy. The project is a partnership among NSF, DOE, and private contributors, with operational support from researchers worldwide.

Reinterpreting dark matter

New research opens up possibility that dark matter governs structure across whole universe, resolving puzzles in galaxy cores and formation timing. The theory suggests large stationary waves of dark matter called solitons could explain observed phenomena.

SourceUniversity of the Basque Country·JournalNature Physics·DateJul 2, 2014

Failed dwarf galaxy survives galactic collision thanks to full dark-matter jacket

Researchers believe a high-velocity hydrogen cloud, known as the Smith Cloud, contains and is wrapped in a substantial halo of dark matter, allowing it to survive a collision with the Milky Way. The discovery could provide insights into the formation of galaxies and the earliest star formation in our galaxy.

SourceNational Radio Astronomy Observatory·JournalMonthly Notices of the Royal Astronomical Society·DateMay 23, 2014

Nearest bright 'hypervelocity star' found

Astronomers have found the closest, second-brightest hypervelocity star, speeding at 1 million mph. The star probes the supermassive black hole at the galaxy's center and the halo of mysterious dark matter, providing insights into the galaxy's structure.

SourceUniversity of Utah·JournalThe Astrophysical Journal Letters·DateMay 6, 2014

Cosmic illusion revealed

Researchers have discovered a galaxy that magnified a background supernova thirtyfold through gravitational lensing, confirming their previous explanation for the anomaly. This discovery may significantly impact our understanding of cosmic expansion and the mysterious components of the Universe, including dark energy and dark matter.

SourceUniversity of Tokyo·JournalScience·DateApr 24, 2014

Searching for dark energy with neutrons

Researchers at Vienna University of Technology have made extremely sensitive measurements of gravitational effects using neutrons, providing limits on possible new particles or fundamental forces that are restrictive even compared to previous estimations. The findings shed light on the possibility of dark energy and quintessence theories.

SourceVienna University of Technology·JournalPhysical Review Letters·DateApr 16, 2014

Searching high and low for dark matter

Researchers have made significant advancements in sensitivity and believe a dark matter particle interacts with ordinary matter rarely, according to conference discussions. The hunt for dark matter continues, with the LHC yet to find evidence of supersymmetry, but potential discovery could reveal dominant form of universe-seeding matter.

Light pollution impairs rainforest regeneration

A recent study found that light pollution impedes fruit-eating bats from dispersing seeds, which is crucial for tropical forest regeneration. As a result, seed rain is reduced, threatening the natural succession of forests in illuminated habitats.

SourceWiley·JournalJournal of Applied Ecology·DateMar 11, 2014