Watch lead spacewalk officer at NASA’s mission Paul Dum provided a step-by-step preview of Tim Peake and Tim Kopra’s spacewalk to make repairs to the International Space Station.
Dark matter, the mysterious substance that constitutes most of the material universe, remains as elusive as ever. Although experiments on the ground and in space have yet to find a trace of dark matter, six or more years of data from NASA’s Fermi Gamma-ray Space Telescope has broadened the mission’s dark matter hunt using some novel approaches.
European Space Agency astronaut Tim Peake pictured during his 4 hour 43 minute spacewalk to replace a failed power regulator and install cabling on the International Space Station. Tim commented on this image: “Today’s exhilarating spacewalk will be etched in my memory forever — quite an incredible feeling!”