Dust erases evidence for gravity wave detection

Spacetime ripples may exist, but search must continue, new analysis concludes

Patch of sky

DUST IN DEPTH  The Planck satellite analyzed the same patch of sky, shown here within the white dots, that the BICEP2 telescope measured in a search for primordial gravitational waves. Yellow and red patches contain the most galactic dust.

Planck/ESA Collaboration. Acknowledgment: M.-A. Miville-Deschênes, CNRS – Institut d’Astrophysique Spatiale, Université Paris-XI, Orsay, France

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