Planck satellite studies say BICEPS2 probably found dust and did not prove gravitational waves. The two groups are working together now. Only Planck can do more than one frequency study which is what is needed to completely clear this up:-http://www.scientificamerican.com/article/betting-against-gravitational-waves-neil-turok/?WT.mc_id=SA_SPC_20140925-Also:-http://www.scientificamerican.com/article/gravitational-wave-discovery-looks-doubtful-in-new-analysis/?WT.mc_id=SA_SPC_20140925