European Space Agency astronaut Alexander Gerst snapped this spectacular view of the moon, Earth’s nearest neighbour and the next target for astronauts moving beyond low-Earth orbit, from his perch aboard the International Space Station. This week, ESA hosted a workshop in the Netherlands to discuss lunar resources and their role in sustainable space exploration. Learning how to extract oxygen and water for life support, producing propellants and building habitats and other structures using available resources will be critical to making such missions affordable, space planners say. ESA is meeting with industry officials, potential partners and space experts to explore “the technological readiness, commercial viability, legal status and international context for lunar resource use.”
Technical problems discovered during ground testing of U.S.-built detectors for the European Space Agency’s Euclid astronomy mission will delay the completion of the telescope’s scientific payload, jeopardising the observatory’s 2020 launch target, the head of NASA’s astrophysics division said last week.
This NASA/ESA Hubble Space Telescope image shows the globular cluster NGC 1854, a gathering of white and blue stars in the southern constellation of Dorado. NGC 1854 is located about 135,000 light-years away, in the Large Magellanic Cloud (LMC), one of our closest cosmic neighbours and a satellite galaxy of the Milky Way.
The origin of of Comet 67P/Churyumov-Gerasimenko’s double-lobed form has been a key question since Rosetta first revealed its surprising shape in July 2014. By studying the layers of material seen all over the nucleus, scientists have shown that the shape arose from a low-speed collision between two fully fledged, separately formed comets.