News tagged with gravitational waves

Quantum measurement precision approaches Heisenberg limit

(PhysOrg.com) -- In the classical world, scientists can make measurements with a degree of accuracy that is restricted only by technical limitations. At the fundamental level, however, measurement precision ...

Physics / Quantum Physics

created Feb 26, 2010 | popularity 4.8 / 5 (46) | comments 16 | with audio podcast feature

Could Exotic Matter Provide an Infinite Source of Energy?

(PhysOrg.com) -- Generally, scientists prefer to avoid the concept of perpetual motion. The idea of a machine that could produce movement that goes on forever, and using that movement to generate an endless ...

Physics / General Physics

created Sep 15, 2009 | popularity 3.4 / 5 (35) | comments 63 feature

Studying the 'mountains' and 'starquakes' that develop on neutron stars

(PhysOrg.com) -- Neutron stars have the potential to play an important role in understanding some of the mysteries of the universe. One of factors that could help lead to an understanding of gravitational waves and the mechanisms ...

Physics / General Physics

created May 26, 2009 | popularity 3.6 / 5 (14) | comments 1 feature

When dark energy turned on (Update)

(PhysOrg.com) -- Some six billion light years distant, almost halfway from now back to the big bang, the universe was undergoing an elemental change. Held back until then by the mutual gravitational attraction ...

Space & Earth / Astronomy

created Mar 30, 2012 | popularity 4 / 5 (19) | comments 68 | with audio podcast

Squeezed laser will bring gravitational waves to the light of day

A quantum phenomenon allows detectors which sense oscillations of space-time to measure with 50 percent more accuracy.

Physics / Quantum Physics

created Sep 11, 2011 | popularity 4.6 / 5 (10) | comments 64 | with audio podcast

CERN's new Einstein Observatory to explore black holes, Big Bang

A new era in astronomy will come a step closer when scientists from across Europe present their design study today for an advanced observatory capable of making precision measurements of gravitational waves ...

Space & Earth / Astronomy

created May 19, 2011 | popularity 4.9 / 5 (8) | comments 10 | with audio podcast

Primordial weirdness: Did the early universe have 1 dimension?

(PhysOrg.com) -- Did the early universe have just one spatial dimension? That's the mind-boggling concept at the heart of a theory that University at Buffalo physicist Dejan Stojkovic and colleagues proposed in 2010.

Physics / General Physics

created Apr 20, 2011 | popularity 4.3 / 5 (37) | comments 200 | with audio podcast

Physicists discover new way to visualize warped space and time

(PhysOrg.com) -- When black holes slam into each other, the surrounding space and time surge and undulate like a heaving sea during a storm. This warping of space and time is so complicated that physicists ...

Physics / General Physics

created Apr 11, 2011 | popularity 4.7 / 5 (32) | comments 49 | with audio podcast

Newly merged black hole eagerly shreds stars

A galaxy's core is a busy place, crowded with stars swarming around an enormous black hole. When galaxies collide, it gets even messier as the two black holes spiral toward each other, merging to make an even ...

Space & Earth / Astronomy

created Apr 08, 2011 | popularity 5 / 5 (10) | comments 8 | with audio podcast

Study predicts distribution of gravitational wave sources

(PhysOrg.com) -- A pair of neutron stars spiraling toward each other until they merge in a violent explosion should produce detectable gravitational waves. A new study led by an undergraduate at the University ...

Space & Earth / Astronomy

created Dec 02, 2010 | popularity 4.1 / 5 (17) | comments 6 | with audio podcast

The music of gravitational waves

A team of scientists and engineers at NASA's Jet Propulsion Laboratory has brought the world one step closer to "hearing" gravitational waves -- ripples in space and time predicted by Albert Einstein in the ...

Physics / General Physics

created Nov 24, 2010 | popularity 4.9 / 5 (21) | comments 62 | with audio podcast

Astronomers discover merging star systems that might explode (w/ Video)

Sometimes when you're looking for one thing, you find something completely different and unexpected. In the scientific endeavor, such serendipity can lead to new discoveries. Today, researchers who found the ...

Space & Earth / Astronomy

created Nov 16, 2010 | popularity 4.8 / 5 (12) | comments 1 | with audio podcast

New 'fix' for cosmic clocks could help uncover ripples in space-time

An international team of scientists including University of British Columbia astronomer Ingrid Stairs has discovered a promising way to fine-tune pulsars into the best precision time-pieces in the Universe.

Physics / General Physics

created Jun 24, 2010 | popularity 4.7 / 5 (22) | comments 6 | with audio podcast

On the deceleration behaviour of black holes

(PhysOrg.com) -- Researchers use the concept of "anti-kick" to explain why the speed suddenly decreases after the collision of such exotic objects.

Physics / General Physics

created Jun 04, 2010 | popularity 4.7 / 5 (18) | comments 23 | with audio podcast

Supermassive black holes may frequently roam galaxy centers

A team of astronomy researchers at Florida Institute of Technology and Rochester Institute of Technology in the United States and University of Sussex in the United Kingdom, find that the supermassive black ...

Space & Earth / Astronomy

created May 25, 2010 | popularity 4.9 / 5 (9) | comments 20 | with audio podcast

Gravitational wave

In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from the source. Predicted by Einstein's theory of general relativity, the waves transport energy known as gravitational radiation. Sources of gravitational waves include binary star systems composed of white dwarfs, neutron stars, or black holes.

Although gravitational radiation has not yet been directly detected, it has been indirectly shown to exist. This was the basis for the 1993 Nobel Prize in Physics, awarded for measurements of the Hulse-Taylor binary system. Various gravitational wave detectors exist.

For more information about Gravitational wave, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.