Space shuttle flight sequence: order of the different operations of the flight.
Pre-launch: part of the flight sequence of the space shuttle before launch.
Launching: start of the ascent of the shuttle.
Solid rocket boosters separate: separation of the external solid-rocket boosters.
External tank separates: the external tank detaches from the orbiter.
Orbit around the earth: repeated circling of the planet.
Orbital operation: work to be done while the orbiter is in orbit.
End of mission: all experiments have been completed.
Leaving earth's orbit: the orbiter leaves orbit to return to earth.
Landing: the orbiter sets down on earth.
Space centre: place where missions are prepared.
Rockets parachute into sea: the rocket, emptied of its propellants, falls in ocean before being recovered.