"Falcon completes its 500th overall mission! Congratulations to the entire SpaceX team for making the impossible possible on the road to rapidly reusable rockets!"

The White House earlier this month directed the Defense Department and NASA to gather details on billions of dollars in SpaceX contracts following the public blowout between President Donald Trump and billionaire Elon Musk,

The SpaceX launch of four private astronauts has been delayed again. The Ax-4 mission to the International Space Station (ISS) had been scheduled to launch atop a SpaceX Falcon 9 rocket from Florida's Space Coast on Wednesday morning (June 11), but a propellant leak in the booster nixed that plan.