[phkahler]

>> From what the website says, one of their main goals is a commercial "astronaut experience". In that case, they're only aiming for 100km.

But SpaceShipOne achieved that back in 2004.

[wiremine]

True, although Virgin Galactic haven't commercialized it either, correct?

[robotresearcher]

Not least because the vehicle was destroyed, killing the pilot.

[Tloewald]

And in a more energy-efficient and elegant manner.