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Galaxy Collision Switches on Black Hole

Galaxy Collision Switches on Black Hole

Space & Earth / Astronomy

created Dec 10, 2009 | popularity 4.5 / 5 (4) | comments 1

(PhysOrg.com) -- This composite image of data from three different telescopes shows an ongoing collision between two galaxies, NGC 6872 and IC 4970.


Scientists observe super-massive black holes using Keck Observatory in Hawaii

Scientists observe super-massive black holes using Keck Observatory in Hawaii

Space & Earth / Astronomy

created Dec 10, 2009 | popularity 5 / 5 (8) | comments 3

An international team of scientists has observed four super-massive black holes at the center of galaxies, which may provide new information on how these central black hole systems operate. Their findings ...


Suzaku catches retreat of a black hole's disk

Suzaku catches retreat of a black hole's disk

Space & Earth / Astronomy

created Dec 10, 2009 | popularity 4.5 / 5 (16) | comments 2

(PhysOrg.com) -- Studies of one of the galaxy's most active black-hole binaries reveal a dramatic change that will help scientists better understand how these systems expel fast-moving particle jets.


Black Holes in Star Clusters stir up Time and Space

Black Holes in Star Clusters stir up Time and Space (w/ Video)

Space & Earth / Astronomy

created Dec 16, 2009 | popularity 4.7 / 5 (15) | comments 5

(PhysOrg.com) -- Within a decade scientists could be able to detect the merger of tens of pairs of black holes every year, according to a team of astronomers at the University of Bonn’s Argelander-Institut ...


Theorists propose a new way to shine -- and a new kind of star

Physics / General Physics

created Dec 14, 2009 | popularity 4.5 / 5 (11) | comments 3

Dying, for stars, has just gotten more complicated. For some stellar objects, the final phase before or instead of collapsing into a black hole may be what a group of physicists is calling an electroweak star.


Studying how black holes grow

Studying how black holes grow

Space & Earth / Space Exploration

created 13 minutes ago | popularity not rated yet | comments 0

Black holes are some of the most exotic objects in the universe. They are the final evolutionary stage of giant stars much larger than the sun. When these stars explode, their cores collapse down to the size ...


Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Physics / Quantum Physics

created Dec 16, 2009 | popularity 4.6 / 5 (34) | comments 17

(PhysOrg.com) -- Spacetime, which consists of three dimensions of space and one time dimension, is such a large, abstract concept that scientists have a very difficult time understanding and defining it. Moreover, ...


Close-up photos of dying star show our sun's fate

Close-up photos of dying star show our sun's fate (w/ Video)

Space & Earth / Astronomy

created Dec 15, 2009 | popularity 5 / 5 (20) | comments 4

(PhysOrg.com) -- About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet ...