All American space effort takes off at 4:33pm today

"The SpaceX Falcon 9, with the Crew Dragon spacecraft on top of the rocket, sits on Launch Pad 39-A on Monday at Kennedy Space Center." 

SpaceX has been involved with space vehicles and rockets since 2011  It operates under 
 funding by the US government under Nasa’s Commercial Crew Program

Photograph:  David J Phillip/AP    Source   theguardian.com  NASA