News tagged with astrophysics

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Probing gravity

(Phys.org) -- Einstein's theory of relativity is remarkable not only because it is so successful in explaining seemingly bizarre observations (like the bending of starlight) or because it has assembled a coherent ...

Jul 30, 2012
4.8 / 5 (10) 196 | with audio podcast

Accreting black holes in galaxies

(Phys.org) -- Seyfert galaxies are like normal galaxies, our own Milky Way included, except in one critical respect: their nuclei are fantastically bright. In some instances they are as luminous as 100 billion ...

Jun 28, 2012
5 / 5 (3) 9 | with audio podcast

Laying the basis for gravitational wave detection

Astronomers have long relied on light waves to provide information about astrophysical objects. The hunt for gravitational waves, highly sought after but terribly elusive, should get a boost from theoretical ...

Jun 27, 2012
4.2 / 5 (6) 23

Radio galaxies in the distant universe

(Phys.org) -- For over a decade astronomers have been probing a region of the northern sky, not far from the handle of the Big Dipper, that is relatively free of bright stars and the diffuse glow of the Milky ...

Jun 26, 2012
4.8 / 5 (6) 0 | with audio podcast

Einstein was right, neutrino researchers admit

Scientists on Friday said that an experiment which challenged Einstein's theory on the speed of light had been flawed and that sub-atomic particles -- like everything else -- are indeed bound by the universe's ...

Jun 08, 2012
4.4 / 5 (37) 81