News tagged with gravitational waves

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

Pulsars: The Universe's gift to physics

Pulsars, superdense neutron stars, are perhaps the most extraordinary physics laboratories in the Universe. Research on these extreme and exotic objects already has produced two Nobel Prizes. Pulsar researchers now are poised ...

Space & Earth / Astronomy

created Feb 19, 2012 | popularity 5 / 5 (6) | comments 47 | with audio podcast

Students discover millisecond pulsar, help in the search for gravitational waves

A special project to search for pulsars has bagged the first student discovery of a millisecond pulsar – a super-fast spinning star, and this one rotates about 324 times per second. The Pulsar Search ...

Space & Earth / Space Exploration

created Jan 31, 2012 | popularity 5 / 5 (3) | comments 0

LISA Pathfinder takes major step in hunt for gravitational waves

(PhysOrg.com) -- Sensors destined for ESA’s LISA Pathfinder mission in 2014 have far exceeded expectations, paving the way for a mission to detect one of the most elusive forces permeating through space ...

Space & Earth / Space Exploration

created Nov 15, 2011 | popularity 5 / 5 (3) | comments 0

Solving Einstein’s theory

A team of University researchers will get their hands on some of Europe’s fastest supercomputers in a bid to crack Einstein’s theory of relativity and help describe what happens when two black holes ...

Physics / General Physics

created Nov 03, 2011 | popularity 4.8 / 5 (21) | comments 79

NASA in final preparations for Nov. 8 asteroid flyby

(PhysOrg.com) -- NASA scientists will be tracking asteroid 2005 YU55 with antennas of the agency's Deep Space Network at Goldstone, Calif., as the space rock safely flies past Earth slightly closer than the ...

Space & Earth / Space Exploration

created Oct 27, 2011 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Gravitational waves that are 'sounds of the universe'

Einstein wrote about them, and we're still looking for them -- gravitational waves, which are small ripples in the fabric of space-time, that many consider to be the sounds of our universe.

Space & Earth / Astronomy

created Oct 03, 2011 | popularity 5 / 5 (2) | comments 0

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

Searching for gravitational waves

Colliding neutron stars and black holes, supernova events, rotating neutron stars and other cataclysmic cosmic events… Einstein predicted they would all have something in common – oscillations in ...

Space & Earth / Astronomy

created Aug 09, 2011 | popularity 4.8 / 5 (24) | comments 70 | with audio podcast

Better hearing with spaced-apart ears

(PhysOrg.com) -- Detectors in the US, Germany and Italy are lying in wait to gather evidence that would unveil one of Albert Einstein’s last secrets: gravitational waves. Up to now, it has not been possible ...

Space & Earth / Astronomy

created Jun 02, 2011 | popularity 4 / 5 (1) | comments 5 | with audio podcast

Scientist instils new hope of detecting gravitational waves

(PhysOrg.com) -- Direct evidence of the existence of gravitational waves is something that has long eluded researchers, however new research has suggested that adding just one of the proposed detectors in Japan, Australia ...

Physics / General Physics

created May 27, 2011 | popularity 5 / 5 (4) | comments 2 | 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

Binary white dwarf stars

(PhysOrg.com) -- When a star like our sun gets to be very old, after another seven billion years or so, it will no longer be able to sustain burning its nuclear fuel.

Space & Earth / Astronomy

created May 04, 2011 | popularity 2 / 5 (2) | comments 0

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

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.