This is SpaceX's most secretive payload yet.
Elon Musk's space company set a new personal best.
See history as it happens.
The engine can be scaled, but is it safe?
They'll follow it up with another launch in just two days.
Cheaper launches will increase our access to space.
The unmanned shuttle is stocked with classified cargo.
That makes nine Falcon 9 landings this year.
This was the quickest succession of launches and one of the heaviest payloads ever for SpaceX.
The stars were never more within our reach.
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