(PhysOrg.com) -- Black holes are irresistible sinks for matter and energy. They are so dense that not even light can escape from their gravitational clutches. Massive black holes (equal to millions or even billions of solar ...
Astronomy
Jan 16, 2012
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(PhysOrg.com) -- Star formation is studied by astronomers not only because it produces new stars and planetary systems. It also generates copious amounts of ultraviolet light that heats dust which in turn causes the birth ...
Astronomy
Jan 9, 2012
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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 Letters that dark ...
General Physics
Nov 23, 2011
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(PhysOrg.com) -- Fat doughnut-shaped dust shrouds that obscure about half of supermassive black holes could be the result of high speed crashes between planets and asteroids, according to a new theory from an international ...
Astronomy
Oct 28, 2011
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(PhysOrg.com) -- A new analysis of images from the Hubble Space Telescope combined with supercomputer simulations of galaxy collisions has cleared up years of confusion about the rate at which smaller galaxies merge to form ...
Astronomy
Oct 27, 2011
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(PhysOrg.com) -- ESO's Very Large Telescope has taken a striking image of a beautiful yet peculiar pair of galaxies nicknamed The Eyes. The larger of these, NGC 4438, was once a spiral galaxy but has become badly deformed ...
Astronomy
Aug 24, 2011
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(PhysOrg.com) -- Five billion years from now, our Milky Way Galaxy will collide with the Andromeda Galaxy. This will mark a moment of both destruction and creation. The galaxies will lose their separate identities as they ...
Astronomy
May 25, 2011
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(PhysOrg.com) -- European Southern Observatory astronomers have produced a spectacular new image of the famous Atoms-for-Peace galaxy (NGC 7252). This galactic pile-up, formed by the collision of two galaxies, provides an ...
Astronomy
Nov 10, 2010
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(PhysOrg.com) -- Is this one galaxy or two? Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object.
Astronomy
Aug 27, 2010
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(PhysOrg.com) -- Distant galaxies are not only far away in space. Because it takes time for their light to reach us, they are also very far away in time -- snapshots from the distant past.
Astronomy
Apr 2, 2010
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