CIMON-2 is a free-floating robot head equipped with artificial intelligence that was launched to the International Space Station on December 5, 2019. CIMON-2 demonstrated improved capabilities over its predecessor CIMON, including more sensitive microphones, increased autonomy, and the ability to assess emotions using IBM's Watson Tone Analyzer. The robot is intended to assist astronauts by helping with experiments, maintenance, and repairs while also serving as a companion to help reduce stress.