Here's how Virgin Galactic's SpaceShipTwo system works:
1. Launch: The SpaceShipTwo is launched from a carrier aircraft called WhiteKnightTwo. WhiteKnightTwo is a twin-fuselage, four-engine aircraft that can carry the SpaceShipTwo to an altitude of approximately 15 kilometers (9 miles). The SpaceShipTwo is attached to the underside of WhiteKnightTwo by a pylon.
2. Separation: Once WhiteKnightTwo reaches its launch altitude, the SpaceShipTwo is released from the pylon and begins its own ascent. The SpaceShipTwo's rocket engine ignites and propels the spacecraft to an altitude of approximately 100 kilometers (62 miles).
3. Weightlessness: At the peak of its ascent, the SpaceShipTwo reaches a state of weightlessness. This is because the spacecraft's velocity is equal to the force of gravity pulling it back to Earth. Passengers can float around the cabin and experience the sensation of weightlessness for a few minutes.
4. Re-entry: After a few minutes of weightlessness, the SpaceShipTwo begins its re-entry into the Earth's atmosphere. The spacecraft's nose cone is extended to create drag and slow the spacecraft down. The SpaceShipTwo also deploys its wings to provide stability and lift.
5. Landing: The SpaceShipTwo glides back to Earth and lands on a runway. The landing process is similar to that of a traditional airplane.
Virgin Galactic is planning to start commercial spaceflight operations in 2022. The company has already sold tickets to more than 600 people, at a price of $250,000 per ticket. Virgin Galactic is also working with NASA to develop a suborbital spaceplane for use in astronaut training and research.
Here are some additional details about Virgin Galactic's SpaceShipTwo system:
* The SpaceShipTwo is a reusable spacecraft. It can be launched and landed multiple times without the need for major refurbishment.
* The SpaceShipTwo is powered by a hybrid rocket engine. The engine uses a combination of solid fuel and liquid oxidizer.
* The SpaceShipTwo can carry six passengers and two pilots. The passengers are seated in reclining seats that are positioned to give them the best possible view of the Earth.
* The SpaceShipTwo's cabin is equipped with a variety of safety features, including a parachute system, a fire suppression system, and a life support system.
* The SpaceShipTwo is capable of reaching an altitude of 100 kilometers (62 miles). This is the boundary of space, as defined by the Fédération Aéronautique Internationale (FAI).
* Virgin Galactic is planning to offer astronaut training and tourism flights. The company is also working with NASA to develop a suborbital spaceplane for use in astronaut training and research.
