ESA (European Space Agency) astronaut Paolo Nespoli has been on the International Space Station for more than 100 days. During that time, he has been busy with investigations involving everything from growing lettuce in space to studies designed to make fuels more environmentally-friendly.
More from the ISS National Lab
How can cargo vehicles add #science real estate for @Space_Station? See how @OrbitalATK's #Cygnus is being tested as an "extended lab." pic.twitter.com/J8R7Py4nGU
— ISS Research (@ISS_Research) November 30, 2017