In March 2014, a group of astronomers claimed that they had found gravitational waves from the early universe. The discovery marked a new history in the arena of science. The finding is commonly known as BICEP2.
Recently, The European Space Agency completely rebuffs the idea of BICEP2. The intergovernmental organization informs that scientists considered dust particles of Milky Way as the gravitational waves.
Marc Kamiokowski, a cosmologist at Johns Hopkins University said that scientists no longer believe that BICEP2 spotted gravitational waves.
Scientists of Planck satellite worked together with the experts of BICEP2. They compare the data of BICEP2 telescope with the Planck satellite in order to determine the accuracy of gravitational waves. The BICEP2 data was recorded at a frequency of 150 gigahertz. In comparison, the Planck’s data was observed at 353 GHz. The two telescopes studied the same region of the Milky Way.
In the end, the close analysis of the data shows that polarization of Cosmic Background Radiation is dust of Milky Way. Earlier, scientists interpreted these dust particles as the gravitational waves.
Jean Loup Puget, a Planck scientist at the Institut d’Astrophysique Spatiale discussed the outcome of the research in detail. He informs that joint effort of the two teams reveals that primordial B modes are only the galactic dust.