Virgin Orbit Successfully Launches Rocket

The video explains the process of launching a rocket using a Boeing 747 aircraft. Initially, the rocket is carried by the aircraft and then detached to ignite its rocket motor. Virgin Orbit, after a failed attempt last year, has now successfully become the third company to reach orbit.

What is the significance of the rocket motor mentioned in the text?

• It is used for propulsion

• It is for stabilization

• It is for communication

• It is for navigation

How many companies have reached orbit according to the text?

• One

• Two

• Three

• Four