[ballooney]

They were originally aiming for 100km, and at early space tourism conferences (about a decade ago) would point out that other competitors (e.g. Lynx, at the time) weren't actually going to 100km so couldn't claim they were going to space (they would do this reliably, and to the growing annoyance of the audience who didn't want audience-question time hijacked for Virgin PR, e.g. in a Q&A panel that had a Lynx team member onboard, a virgin person would always ask a question like 'Just to confirm, you're not flying above 100km, the altitude at which space starts?').

However, the performance of Spaceship 2's engines has fallen short of the original design goal, making it incapable of reaching 100km, so they are now using a different definition of Space for PR purposes.