Gravitational wave discovery gives way to Milky Way dust

Planck spacecraft shows no evidence to support BICEP2 results

dust map of Milky Way

DUST MAP  In this map of the entire sky, Planck measured regions heavily contaminated by dust (red) and relatively clean ones (blue). The map looks above (left) and below (right) the plane of the Milky Way, centered on the galactic pole, with larger circles representing lower galactic latitudes. The black outline at right shows the sky region in which BICEP2 looked for gravitational waves.

Planck Collaboration, adapted by E. Otwell

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