In March 2014, the announcement that the BICEP2 (Background Imaging of Cosmic Extragalactic Polarization) experiment had detected gravitational waves in the perturbations in the cosmic microwave background radiation existing in the universe was sensational. This echo of cosmic inflation occurred shortly after the Big Bang was an extraordinary discovery. Unfortunately, a collaboration between the BICEP2 experiment and the team of ESA’s Planck space telescope has determined that those weren’t gravitational waves but probably emissions caused by galactic dust.
ESA’s 5-ATV (Automated Transfer Vehicle 5) “Georges Lemaître” was used in a manner different from the usual. The cargo spacecraft is docked to the International Space Station since August 12 2014 and yesterday its thrusters were used to lower the Station about a kilometer. The purpose is to allow spaceships that reach it to carry a greater cargo.