News tagged with dwarf galaxies
Related topics: hubble space telescope
Fermi observations of dwarf galaxies provide new insights on dark matter
(PhysOrg.com) -- There's more to the cosmos than meets the eye. About 80 percent of the matter in the universe is invisible to telescopes, yet its gravitational influence is manifest in the orbital speeds ...
Apr 02, 2012 |
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Black hole came from a shredded galaxy
(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope have found a cluster of young, blue stars encircling the first intermediate-mass black hole ever discovered. The presence of the star cluster ...
Feb 15, 2012 |
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Astronomy team discovers nearby dwarf galaxy
(PhysOrg.com) -- A team led by UCLA research astronomer Michael Rich has used a unique telescope to discover a previously unknown companion to the nearby galaxy NGC 4449, which is some 12.5 million light years ...
Feb 08, 2012 |
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Physicists set strongest limit on mass of dark matter
Brown University 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. The researchers report in Physical Review Le ...
Nov 23, 2011 |
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Hubble uncovers tiny galaxies bursting with starbirth in early Universe
(PhysOrg.com) -- Using its infrared vision to peer nine billion years back in time, the NASA/ESA Hubble Space Telescope has uncovered an extraordinary population of tiny, young galaxies that are brimming with ...
Nov 10, 2011 |
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Dark matter mystery deepens
(PhysOrg.com) -- Like all galaxies, our Milky Way is home to a strange substance called dark matter. Dark matter is invisible, betraying its presence only through its gravitational pull. Without dark matter ...
Oct 17, 2011 |
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Small distant galaxies host supermassive black holes
(PhysOrg.com) -- Using the Hubble Space Telescope to probe the distant universe, astronomers have found supermassive black holes growing in surprisingly small galaxies. The findings suggest that central black ...
Sep 15, 2011 |
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Dark matter packs a punch: Milky Way's spiral arms formed by intergalactic collision
The signature spiral arms of the Milky Way galaxy were likely formed by an epic collision between the Milky Way and the Sagittarius Dwarf galaxy, according to a University of Pittsburgh researcher and his ...
Sep 14, 2011 |
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Surprise: Dwarf galaxy harbors supermassive black hole
(PhysOrg.com) -- The surprising discovery of a supermassive black hole in a small nearby galaxy has given astronomers a tantalizing look at how black holes and galaxies may have grown in the early history ...
Jan 09, 2011 |
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The universe's most massive stars can form in near isolation, new study finds
(PhysOrg.com) -- New observations by University of Michigan astronomers add weight to the theory that the most massive stars in the universe could form essentially anywhere, including in near isolation; they ...
Dec 21, 2010 |
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Discovery triples number of stars in universe
Astronomers have discovered that 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 ...
Dec 01, 2010 |
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Hubble captures new life in an ancient galaxy
(PhysOrg.com) -- Elliptical galaxies were once thought to be aging star cities whose star-making heyday was billions of years ago.
Nov 18, 2010 |
4.5 / 5 (13) |
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Hubble observations of supernova reveal composition of 'star guts' pouring out
Observations made with NASA's newly refurbished Hubble Space Telescope of a nearby supernova are allowing astronomers to measure the velocity and composition of "star guts" being ejected into space following ...
Sep 02, 2010 |
4.6 / 5 (17) |
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Old star is 'missing link' in galactic evolution
(PhysOrg.com) -- A newly discovered star outside the Milky Way has yielded important clues about the evolution of our galaxy. Located in the dwarf galaxy Sculptor some 280,000 light-years away, the star has ...
Mar 03, 2010 |
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Alien invaders pack the Milky Way
(PhysOrg.com) -- Around a quarter of the globular star clusters in our Milky Way are invaders from other galaxies, new research from Swinburne University of Technology (Australia) shows.
Feb 23, 2010 |
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