A SpaceX spacecraft carrying two NASA astronauts soared into outer space on Saturday — marking the first time humans have traveled into Earth's orbit from US soil in nearly a decade. The two astronauts will spend about 19 hours aboard SpaceX's Crew Dragon capsule as it slowly maneuvers its way toward the International Space Station. US President Donald Trump and Vice President Mike Pence were in Cape Canaveral to watch the launch. The United States hasn't launched its own astronauts into space since the Space Shuttle Program ended in 2011. Since then, NASA's astronauts have had to travel to Russia and train on the country's Soyuz spacecraft. The launch also marked the first time in history that a commercial aerospace company has carried humans into Earth's orbit. SpaceX has been working on the Crew Dragon spacecraft for 15 years.