Virgin Galactic, the space venture backed by Sir Richard Branson will launch on the New York Stock Exchange (NYSE) today.
Shares in Virgin Galactic are set to start trading on Monday, a first for a space tourism company.
The move follows Virgin’s merger with publicly-listed Silicon Valley holding firm Social Capital Hedosophia.
That deal brought $800m (£624m) to Virgin as it rushes to meet its goal of sending customers to space in 2020.
Taking the firm public will “open space to more investors and in doing so, open space to thousands of new astronauts,” Sir Richard said at the time.