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Is the detection of gravitational waves a reality with nowadays technology? Are there recent news?

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marked as duplicate by Ben Crowell, ACuriousMind, Kyle Kanos, Qmechanic Aug 8 at 20:31

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

I see there was a question very similar to this. Sorry. It looks like there are no (detectable) gravity waves yet, out there. Correct ? –  user6090 Dec 19 '11 at 20:55
If there were, it would be covered in the news by a bunch of journalists who have no clue what they're talking about. –  endolith Dec 20 '11 at 20:53
Comment to the question (v1): It seems this post is conflating gravity waves and gravitational waves. Related for the latter: physics.stackexchange.com/q/10161/2451 –  Qmechanic Aug 30 '12 at 6:12

2 Answers 2

up vote 2 down vote accepted

Unfortunately gravitational waves have not been detected yet.

There is a number of Earth-bound detectors planned and already in operation (e.g. LIGO, Geo 600, Virgo, Nanograv and others). As for space-borne detectors, ESA works on Next Gravitational-Wave Observatory after NASA pulled out of LISA project in April 2011 due to funding problems. Joint NASA/ESA mission, LISA Pathfinder will launch in June 2013 testing technologies to be used by NGO.

Keep an eye on the pages and blogs of these projects if you'd like to stay up to date on their progress. Also, if gravitational waves are detected, the discovery will no doubt be announced here and even here.

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@Zalcman: thank you for your comprehensive answer. I will keep an eye on the institutions you listed. –  user6090 Dec 20 '11 at 9:37

Yes. There is news relating to gravitational waves detection.

FIRST News Item, May 2014, Scientific American:


The image attached is purported "pattern of oscillation" in gravity waves, as reportedly derived from BICEP2. And purportedly related to the Primordial Gravity wave, as detected within the Cosmic Microwave Background Radiation.

Pattern of oscillation in the universal gravity wave.

"Reported Pattern of Oscillation of Polarity in the Universal Gravity Wave, May 2014"

SECOND News Item:

Also publicly released within the past few years, relating to the detection of gravity waves, is information from the NASA's GRACE Mission.

GRACE is a pair of satellites in similar orbits, one behind the other. As they pass over the earth, sometimes they are pulled apart, sometimes they are pulled together.

This is directly a result of their passage through space that is experiencing gravity equally from below and above, by nature of their continued smooth orbit, yet are affecting the satellites orbital velocities independently, ever so slightly.

From this pattern of getting closer and farther from one another, in direct relation to the combined pattern of gravity differentials, between the two satellites, AND the earth, AND the rest of the universe, as experienced in the "now" when detected..

Derivations of the shape of gravity waves should be valid, from the changes in the patterns of the oscillations, because to me I see in the maps, an interference pattern that I think must be dual sourced. Likely a combination of outbound and inbound waves. It does not seem affected by local geography. Seems polarized in nature. Seems to have different periods of phase changing between poles and equatorial region. And this is current and reality. And is observation. News. With an explanation.

And I strongly encourage people to view data at the GRACE Mission Data Portal, for themselves, because I cannot do all of the information justice here, without bringing 200 snapshots of the different months to beat my point to death.

The fact that the gravity pattern on earth is directly related to solar magnetic field polarity, I don't think has been brought to light anywhere in this fashion.

These 3 graphs may help understand the relationship between the solar cycles, and earths gravitational cycles, and therefor the nature of the gravity wave field, especially by, keeping their timing in mind, while viewing GRACES Monthly gravity anomaly maps:

 Solar sunspot cycle 1996-2014

 Solar magnetic field strength fluctuations, displayed per pole.

 Relating Solar activity to Earths magnetic field strenght

The notations about CO2 can be ignored for the purpose of this answer, but the graphics and the gravity maps from GRACE, collected and presented in the single frame, should stand, as news and as related to the detection of gravity waves.

The maps below are generated using Smoothing Radius 25km, map type Monthly Anomaly.


Examples are in the picture below:

 Gravitational interference pattern proposal, Maps from GRACE Mission Data Portal

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This is not really an answer, just some links and cut-and-pasted graphics. The text in the bottom graphic is kook stuff. –  Ben Crowell Aug 8 at 17:19
Thank you for the encouragement to explain myself more slowly Ben. I hope you like the new answer better. Cheers, A. –  Alistair Riddoch Aug 8 at 20:53

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