Just opening up a forum thread for discussing the intermediate Planck results (arXiv:1409.5738v1) which show that the BICEP2 signal -- lauded as direct of evidence of primordial gravitational waves earlier this year -- could be down to dust, which has long been a concern.
The image shows Planck's Northern (on the left) and Southern (right) sky projections. Dark blue indicates parts of the sky that are clearer of dust. BICEP2 looked at the region marked by the black box in the Southern projection.
For background, listen to our podcast editions from May, with interviews with Andrei Linde and especially Joao Magueijo (who raised these particular concerns and others), and June, with Alan Guth.
Reports from Quanta, the BBC and Nature.