SpaceX launched the Crew-11 on Aug. 1, sending four astronauts to the International Space Station on the record-breaking sixth flight of its Crew Dragon Endeavour spacecraft.

An international crew of four astronauts launched toward the International Space Station from Florida on Friday aboard a SpaceX rocket, embarking on a routine NASA mission that could be the first of many to last a couple months longer than usual.

The medical center previously conducted a test with bacteria in simulated space conditions, which showed a reduced ability to develop antibiotic resistance, but the latest experiment is the first one to take place at the ISS.