NASA astronauts Bob Behnken and Doug Hurley are making their 19-hour journey from the Kennedy Space Center in Florida to the International Space Station inside SpaceX's Crew Dragon after NASA and SpaceX teamed up for the first launch of a spacecraft carrying humans into space from U.S. soil since 2011. The launch was originally scheduled for Wednesday, but lightning and rain led to its postponement. Weather threatened to derail Saturday's launch, as well, but the skies cleared in time. The mission is considered the start of a new era in spaceflight. Not only is it the first launch from U.S. soil in nearly a decade, it's the first time a private company orchestrated a crewed mission to space.

Scroll for 5 things you
need to know now