Rosetta’s mass spectrometer ROSINA detected argon at comet Churyumov-Gerasimenko

29-Sep-2015 - The mass-spectrometer ROSINA on ESA’s comet probe Rosetta has for the first time detected the noble gas argon in the coma of 67P/Churyumov-Gerasimenko. This measurement adds to the debate about the role of comets in delivering various «ingredients» to Earthsuch as water. Comets are considered to ...