Chronicling the follies of religion and superstition, the virtues of skepticism, and the wonders of the real (natural) universe as revealed by science. Plus other interesting and educational stuff.

"Tell people there’s an invisible man in the sky who created the universe, and the vast majority believe you. Tell them the paint is wet, and they have to touch it to be sure."

-George Carlin

“If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed”.

-Albert Einstein

“Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.”

-Carl Sagan

The person who is certain, and who claims divine warrant for his certainty, belongs now to the infancy of our species. It may be a long farewell, but it has begun and, like all farewells, should not be protracted.

-Christopher Hitchens

 

Pair of Eclipsing White Dwarfs Produce Gravitational Waves

Discovered last year in system J0651, two white dwarf stars are so close together that they make a complete orbit in less than 13 minutes and now astronomers have detected gravitational waves at optical wavelengths in light from them.

Cambridge, Massachusetts – Gravitational waves, much like the recently discovered Higgs boson, are notoriously difficult to observe. Scientists first detected these ripples in the fabric of space-time indirectly, using radio signals from a pulsar-neutron star binary system. The find, which required exquisitely accurate timing of the radio signals, garnered its discoverers a Nobel Prize. Now a team of astronomers has detected the same effect at optical wavelengths, in light from a pair of eclipsing white dwarf stars.

“This result marks one of the cleanest and strongest detections of the effect of gravitational waves,” said team member Warren Brown of the Smithsonian Astrophysical Observatory (SAO).

(Read More)

Pair of Eclipsing White Dwarfs Produce Gravitational Waves

Discovered last year in system J0651, two white dwarf stars are so close together that they make a complete orbit in less than 13 minutes and now astronomers have detected gravitational waves at optical wavelengths in light from them.

Cambridge, Massachusetts – Gravitational waves, much like the recently discovered Higgs boson, are notoriously difficult to observe. Scientists first detected these ripples in the fabric of space-time indirectly, using radio signals from a pulsar-neutron star binary system. The find, which required exquisitely accurate timing of the radio signals, garnered its discoverers a Nobel Prize. Now a team of astronomers has detected the same effect at optical wavelengths, in light from a pair of eclipsing white dwarf stars.

“This result marks one of the cleanest and strongest detections of the effect of gravitational waves,” said team member Warren Brown of the Smithsonian Astrophysical Observatory (SAO).

(Read More)

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