513K views · 2.6K reactions | LIFTOFF! The first crewed spaceflight to take off from the US in nearly a decade launches. The SpaceX flight, which has two NASA astronauts on board, is also the first time that a privately developed spacecraft launched humans into Earth's orbit. https://cnn.it/2ZTpYfk | CNN Replay | Facebook

168K views · 245 reactions | "It looks as if the scientists and engineers just stepped away from their desks," CNN's Rachel Crane speaks with NASA's Chief Flight Director Holly Ridings about the significance of the Apollo Mission control room from where it all happened https://cnn.it/2XUxTcx | CNN Replay | Facebook

UPDATE: NASA's Space Launch System is ahead of schedule for its Green Run Hot Fire test! 📺 Coverage on NASA TV kicks off today at 3:20 p.m. EST Watch LIVE as we fire up its 4 engines simultaneously to test the core stage that will propel future missions for NASA's Artemis Program to the Moon: youtu.be/PapBjpzRhnA | NASA - National Aeronautics and Space Administration