Was Einstein right about gravitational waves?

Larry Mantle (AirTalk, scpr.org); CC Liu, Sheldon S., Crystal Quintero, Wisdom Quarterly

Laser Interferometer Gravitational-wave Observatory (LIGO) detectors have discovered gravitational waves

Meanwhile, sex has taken over the American college "hook up" culture, but how about just casual (sexless) dating instead? (Let's ask Jennifer Jason Leigh about her sex scenes). California has no solution for its teacher shortage, and with leader Charles Lester ousted, the search is on for a new director of the California Coastal Commission.

• UPDATE: (NPR/The Two-Way) Einstein, a Hunch and Decades of Work: How Scientists Found Gravitational Waves Behind the headlines and press conferences announcing the discovery were decades of hard work, hundreds of scientists and more than a billion dollars in taxpayer funds. (Space)

Physicists on why discovery of gravitational waves is earth-shattering for scientific community

David Reitze, executive director of LIGO Laboratory at Caltech, announces scientists have observed ripples in fabric of spacetime called gravitational waves (Saul Loeb/AFP/Getty).

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(AirTalk) PASADENA - For the first time ever, scientists can actually hear the universe. [What does it sound like? "Om," ping, white background noise, like the beach?] A team of physicists announced today that they were able to detect and record the sound of two black holes [clapping] a billion light-years away colliding with one another.

A hundred years ago, Albert Einstein posited that gravitational waves existed, but until now these ripples in the fabric of space-time were undetectable. Now, thanks to the twin Laser Interferometer Gravitational-wave Observatory (LIGO) detectors and the team that worked on them, the final piece of Einstein’s general theory of relativity.

 

I wasn't always crazy (E.O.H.)

What does the universe sound like? The LIGO team says it was a faint tone that was the result of a collision about 1.2 billion years ago that rose to the note of middle C before stopping. It [allegedly] signifies the warping of space-time itself.

Until now, scientists haven’t been able to measure that sound over the other noises of our planet, but in September 2015, the LIGO antenna were able to measure vibrations from a gravitational wave in The discovery is being likened by some to the night Galileo first pointed a telescope toward the sky and observed the planets.

Just how important is this discovery to the scientific community? Let's ask Caltech Professor of Physics Alan Weinstein and Prof. Lawrence Krauss, theoretical physicist and Foundation Professor in the School of Earth and Space Exploration and Physics Department at Arizona State University. More + AUDIO

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