NASA astronauts Chris Williams and Sophie Adenot processed DNA Nano Therapeutics-3 experiment samples in the Kibo laboratory module aboard the International Space Station on April 22, 2026, exploring DNA-inspired assembly techniques for manufacturing nano-therapies such as chemotherapy and immunotherapy to kill cancer cells and activate the immune system. The Expedition 74 crew also tested new exercise hardware, virtual reality goggles for vision screening, and continued unpacking cargo from Northrop Grumman's Cygnus XL resupply ship. Samples will be analyzed on the orbital outpost with a spectrophotometer then returned to Earth for further analysis.