Astronaut Christina Koch Works in the Vacuum of Space by Staff October 16, 2019 October 16, 2019 44 views 44NASA astronaut Christina Koch works while tethered near the Port 6 truss segment of the International Space Station.Source: nasa.gov 0 FacebookTwitterPinterestEmail previous post Computational ‘match game’ identifies potential antibiotics next post The 7 Best Free Mind Map Tools (And How to Best Use Them)