Space Exploration September 12, 2024 9:32 am Polaris Dawn crew performs first all-civilian, commercial spacewalk The Polaris Dawn crew floated through the hatch of the SpaceX Dragon capsule Thursday to perform the first ever private spacewalk. US & World Videos 1:31 Steward Health Care CEO stepping down after Senate scrutiny 9:28 Maya Rudolph and Andy Samberg reunite as Kamala Harris and Doug Emhoff in ‘SNL' cold open 3:53 Cooler temperatures in New England on Sunday 1:44 Steward Health CEO to step down 1:07 More than 50 people stranded on roof of Tennessee hospital flooded by Helene