A SpaceX Falcon 9 rocket, with the company’s Dragon spacecraft atop, is secured in the vertical position at NASA Kennedy Space Center’s Launch Complex 39A on March 13, 2023, in preparation for the 27th commercial resupply services launch to the International Space Station. The mission will deliver new science investigations, supplies, and equipment to the crew aboard the space station, including the final two experiments comprising the National Institutes for Health and International Space Station National Laboratory’s Tissue Chips in Space initiative, Cardinal Heart 2.0 and Engineered Heart Tissues-2. Liftoff is scheduled for 8:30 p.m. EDT on Tuesday, March 14, from Kennedy’s Launch Complex 39A.