Virgin Galactic competes in the "suborbital" space tourism sector with billionaire Jeff Bezos's company, Blue Origin, which has already sent 32 people into space using a vertical lift-off rocket.
But since an accident in September 2022 during an unmanned flight, Blue Origin's rocket has been grounded. The company promised in March to resume spaceflight soon.
Elon Musk's SpaceX meanwhile has collaborated with partner companies to send paying customers higher up, into Earth orbit or to the International Space Station.
But chartering a SpaceX rocket is a much more costly affair. Tickets for the ISS in joint SpaceX-Axiom Space missions are reported to run into tens of millions of dollars.