Many of you will have read in the last week that unfortunately (though to no one’s surprise after seeing the data from the Planck satellite in the last few months) the BICEP2 experiment’s claim of a discovery of gravitational waves from cosmic inflation has blown away in the interstellar wind. [For my previous posts on BICEP2, including a great deal of background information, click here.] The BICEP2 scientists and the Planck satellite scientists have worked together to come to this conclusion, and written a joint paper on the subject. Their conclusion is that the potentially exciting effect that BICEP2 observed (“B-mode polarization of the cosmic microwave background on large scales”; these terms are explained here) was due, completely or in large part, to polarized dust in our galaxy (the Milky Way). The story of how they came to this conclusion is interesting, and my goal today is to explain it to non-experts. Click here to read more.
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- A Hidden Gem At An Old Experiment?
- The 2016 Data Kills The Two-Photon Bump
- A Flash in the Pan Flickers Out
- The Summer View at CERN
- Spinoffs from Fundamental Science
- LIGO detects a second merger of black holes
- Giving two free lectures 6/20,27 about gravitational waves
- Pop went the Weasel, but Vroom goes the LHC