Posts Tagged ‘dark matter’
Lens method puts dark new galaxy in focus
UC DAVIS (US) — A faint “satellite galaxy” 10 billion light years from Earth is the lowest-mass object ever detected at such a distance, say researchers. Continue…
Monday, February 6, 2012 17:03 - 2 Comments
Science & Technology - Jan 23, 2012 13:53 - 0 Comments
When galaxy clusters collide
UC DAVIS (US) — Researchers have new details about what happens when two clusters of galaxies collide. (more…)
Science & Technology - Jan 12, 2012 12:36 - 0 Comments
El Gordo: Big, hot galaxy cluster found
RUTGERS (US) — Astrophysicists have discovered the largest galaxy cluster ever seen in the distant universe, located more than 7 billion light years from Earth. (more…)
Science & Technology - Nov 29, 2011 18:10 - 0 Comments
Physicists set limit on dark matter mass
BROWN (US) — Physicists have set the strongest limit for the mass of dark matter, the mysterious particles believed to make up nearly a quarter of the universe. (more…)
Science & Technology - Nov 10, 2011 11:48 - 0 Comments
Dwarf galaxies put dark matter to the test
U. MICHIGAN (US) — Two satellite dwarf galaxies found 1.1 million and 600,000 light years from Andromeda, the closest spiral galaxy to Earth, may help reveal the nature of dark matter. (more…)
Science & Technology - Sep 22, 2011 13:57 - 2 Comments
Black hole crashes into star: Dark matter?
PRINCETON / NYU (US) — Scientists looking for evidence of dark matter are studying the results of simulated collisions between stars and black holes. (more…)
Science & Technology - Sep 19, 2011 12:09 - 0 Comments
How the Milky Way got its spiral
U. PITTSBURGH (US) — The Milky Way’s spiral arms began forming after an epic collision with the Sagittarius Dwarf galaxy, according to supercomputer simulations. (more…)
Science & Technology - Jun 8, 2011 12:39 - 0 Comments
Dark matter ‘wimps’ hard to grasp
U. CHICAGO (US) — An experiment more than a mile underground may reveal that dark matter’s deeply held secret is that it’s a WIMP. (more…)
Science & Technology - Jan 17, 2011 12:26 - 0 Comments
Black hole with mass of 6.6 billion suns
U. TEXAS-AUSTIN (US) — The enormous mass of the black hole at the center of galaxy M87 makes it a prime candidate for future studies to “see” a black hole for the first time. (more…)
Science & Technology - Dec 6, 2010 14:05 - 1 Comment
Red dwarfs increase star total threefold
YALE (US) — Small, dim stars known as red dwarfs are much more prolific than previously thought—so much so that the total number of stars in the universe is likely three times bigger than realized. (more…)
Science & Technology - Aug 12, 2010 15:15 - 5 Comments
Dark-matter search plunges to new depths
U. CHICAGO (US)—Researchers are expecting a bubble chamber more than a mile underground will reveal dark matter’s secret identity. (more…)
Science & Technology - Jul 26, 2010 11:45 - 1 Comment
Fast stars fueled by black hole
U. MICHIGAN (US)—The black hole at the center of the galaxy is to blame for sling-shotting “hypervelocity stars” out of the Milky Way at up to 1.8 million miles per hour, new research suggests. (more…)
Science & Technology - Jul 23, 2010 10:35 - 1 Comment
Intensity mapping shines light on dark energy
CARNEGIE-MELLON (US)—A new tool for tracking large cosmic structures—called intensity mapping—is expected to provide valuable clues about the nature of the “dark energy” believed to constitute nearly three-fourths of the mass and energy of the universe. (more…)
Science & Technology - Mar 31, 2010 11:06 - 1 Comment
Smashing success for Big Bang experiment
U. COLORADO (US)—Scientists crashed proton beams together at three and one-half times the highest energy levels ever recorded on March 30 in a quest to discover the physical conditions immediately following the Big Bang. (more…)
Science & Technology - Mar 16, 2010 11:36 - 6 Comments
Universe’s age: 13.75 billion years
STANFORD (US)—Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par with other techniques. (more…)
Science & Technology - Mar 10, 2010 17:08 - 0 Comments
Einstein validated on cosmic scale
PRINCETON / UC BERKELEY (US)—An analysis of more than 70,000 galaxies demonstrates that the universe—at least up to a distance of 3.5 billion light years from Earth—plays by the rules set out 95 years ago by Albert Einstein in his General Theory of Relativity. (more…)
Science & Technology - Mar 5, 2010 12:31 - 1 Comment
Dark matter ‘bump’ detected deep underground
MINNESOTA (US)—Physicists have recorded two interactions of subatomic particles whose signals look like those expected from the dark matter that gives shape to galaxies and forms the bulk of the Universe. (more…)
Science & Technology - Feb 3, 2010 12:55 - 0 Comments
Simulated galaxies resemble real ones
WASHINGTON (US)—Using millions of hours on supercomputers, researchers have run simulations of galaxy formation and produced dwarf galaxies very much like those observed today by satellites and large telescopes around the world. (more…)
Science & Technology - Jan 13, 2010 10:58 - 5 Comments
So, why is the Milky Way a barred spiral?
CALTECH (US)—For the first time, two astronomers have explained the diversity of galaxy shapes seen in the universe. (more…)
