Is There an Anti-graviton?
Most recent answer: 12/29/2014
- Ahmed (age 13)
According to the latest theories there should be a graviton. An anti-graviton, if it existed, would have the identical properties of the graviton. No existing experiment has proved conclusively that these particles exist but improvements to current detectors such as VIRGO and LIGO should be up and running within a year or so.
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The experiments looking at details of the cosmic microwave background may succeed in finding a signal due to the specifically quantum nature of the graviton, rather than just the general gravitational wave properties. The BICEP2 group thought they'd seen this signal, but it looks as if they were mistaken. Several experiments are looking now with greater sensitivity.
(published on 12/29/2014)