They are the most sensitive gravitational wave
detectors ever built, and this is what they were built to do: there was a 'disturbance in the gravitational force', and the LIGO detectors have felt it!
The first gravitational wave
event was a merger of two black holes, Lundquist said.
As a gravitational wave
passes through the observatory, it causes extremely tiny distortions in the distance travelled by each laser beam.
Media hype also surrounded the first actual detection of gravitational waves
, though this time with the opposite outcome: The detection of GW150914 panned out and revolutionized astronomy.
A long-standing goal of the LIGO project has been the development of multi-messenger astronomy--the near-simultaneous observation of cataclysmic events such as neutron star mergers or supernova explosions in both gravitational waves
and light, providing details about the astrophysics of these phenomena that cannot be revealed through either alone.
The detection marks the first time that a cosmic event has been viewed in both gravitational waves
WHY IS IT SO HARD TO SEE OR FEEL GRAVITATIONAL WAVES
One sun's worth of mass was converted into energy and carried away by the gravitational waves
, LIGO scientists reported in San Diego during a meeting of the American Astronomical Society.
observations hold the answers to many deep questions that trouble physics.
The noise at one is not correlated with the noise at the other -- unlike the signal from a passing gravitational wave
, which would occur first at one location and then the other.
highlighted the importance of studying pulsars as another important avenue of gravitational wave
The socalled "Great Metric Tensor" [13-14] is used to deduce a general gravitational wave
equation; which is later applied to a sinusoidally varying mass for a homogeneous spherical distribution of mass.