RT @ESA_Rosetta: I’ve detected the noble gas argon in #67P’s coma! Why I’m excited about this result: ow.ly/3yf48B #livingwithacomet
RT @ESA_Rosetta: I’ve detected the noble gas argon in #67P’s coma! Why I’m excited about this result: ow.ly/3yf48B #livingwithacomet