Virgin Galactic's new spaceship N202VG (bottom L) is seen behind the WhiteKnightTwo carrier aircraft mothership (front), which landed safely after splitting from SpaceShipTwo, in a hangar at Mojave Air and Space Port in Mojave, California, November 4, 2014. (Photo by Lucy Nicholson/Reuters)

Messages of condolences from social media are seen on the wall along a corridor of the Virgin Galactic hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

Virgin Galactic's new spaceship N202VG, which the company began building 2 and a half years ago, is seen in a hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

The moon rises over a hangar at the Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

Virgin Galactic's CEO George T. Whitesides stands in front of their new spaceship N202VG (bottom L) and the WhiteKnightTwo carrier aircraft mothership, which landed safely after splitting from SpaceShipTwo, in a hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

The tail of Virgin Galactic's new spaceship N202VG, which the company began building 2 and a half years ago, is seen in a hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

The sun sets behind the Virgin Galactic hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

Virgin Galactic's new spaceship N202VG, which the company began building 2 and a half years ago, is seen in a hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

Virgin Galactic's WhiteKnightTwo carrier aircraft mothership, which landed safely after splitting from SpaceShipTwo, is seen in a hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)

Virgin Galactic's CEO George T. Whitesides stands in front of their new spaceship N202VG, which the company began building 2 and a half years ago, in a hangar at Mojave Air and Space Port in Mojave. (Photo by Lucy Nicholson/Reuters)