Lift off of the mighty Delta IV Heavy rocket with NASA's Parker Solar Probe, a daring mission to shed light on the mysteries our closest star, the sun.
And the Stratolaunch made history Saturday morning when it lifted off the ground, got up to speeds of 173 miles per hour and climbed 15,000 feet into the sky.
It is a vehicle, electrically powered, that can lift off the ground vertically, then go forwards to a certain destination, and then land vertically as well.