Johns Hopkins astrophysicists Brice Ménard and Charles L. Bennett have been appointed to the Euclid Consortium, the international team of scientists overseeing an ambitious space telescope project designed to probe the mysteries of dark energy and dark matter. NASA, a partner in the mission, recently announced their selection to the research team for Euclid. The European Space Agency (ESA) is leading the mission, which is scheduled to launch in 2020. A recent announcement about the ESA-NASA partnership said that Euclid’s telescope and scientific instruments “will map the shape, brightness, and 3D distribution of 2 billion galaxies covering more than a third of the whole sky and looking back over three-quarters of the history of the universe.”