There are some exciting experiments heading to the ISS. As part of Northrop Grumman’s 20th resupply mission there will be 3D-printing, robotic, medical and industrial experiments in tow. Via NASA:
Tests of a 3D metal printer and thermal protection systems for reentry to Earth’s atmosphere are among the scientific investigations that NASA and international partners are launching to the International Space Station on Northrop Grumman’s 20th commercial resupply services mission. The company’s Cygnus cargo spacecraft is scheduled to launch on a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station in Florida no earlier than late January.