Big day in the world of physics:
About a hundred years ago, Einstein predicted the existence of gravitational waves, but until now, they were undetectable.
QUOTATION OF THE DAY
"Everything else in astronomy is like the eye. Finally, astronomy grew ears. We never had ears before."SZABOLCS MARKA, part of a team of scientists who announced they had heard and recorded the sound of two black holes colliding a billion light-years away
SCIENCE | Out ThereGravitational Waves Detected, Confirming Einstein's Theory
By DENNIS OVERBYE
Scientists say they heard the faint chirp of two black holes colliding a billion light-years away, fulfilling Einstein's general theory of relativity.
OPINION | OpinionFinding Beauty in the Darkness
By LAWRENCE M. KRAUSS
Einstein's "ripples" should matter to everyone - not just physicists.