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Gravitational Waves

Ripples in space-time created by the stretching and squeezing effects of massive objects, notably supernovae, binary black holes, and binary neutron stars. Gravity waves are transverse waves, meaning that they stretch and squeeze space-time in directions perpendicular to the wave’s motion. Einstein’s Theory of General Relativity predicts the existence of gravity waves, but they have not yet been detected.

Radio Programs

New Missions Stars and ripples for two spacecraft December 19, 2016

Dark Alternatives New light on dark matter August 29, 2016

Black Hole Ripples Explaining ripples in the universe June 30, 2016

Gamma-Ray Bursts II A final gasp from dead stars April 19, 2016

Merging Quasars Pairs of black holes get closer December 16, 2015

Pulsar Tales Dead stars that won’t shut up August 19, 2013

Cracking Up A neutron star cracks up March 21, 2013

Gravitational Kick A black hole gets a big kick October 23, 2012

Wobbly Clocks Listening for cosmic “ripples” May 10, 2012

Gravitational Waves V The “wavy” birth of a black hole January 26, 2012

Gravitational Waves IV Silencing the rumbling Earth January 25, 2012

Gravitational Waves III Lighting up ripples in spacetime January 24, 2012

Gravitational Waves II Tiny ripples from heavy objects January 23, 2012

Gravitational Waves Rippling across the universe January 22, 2012

Featured Images

Computer simulation of merging black holes

Dark Ripples June 30, 2016

Launch of Lisa Pathfinder

Gravity Bound December 2, 2015