Microsoft co-founder Paul Allen has spent the last six years working on a giant aircraft capable of launching rockets to space. Today, his company Stratolaunch Systems literally rolled that plane out of its hangar in the Mojave Desert for the first time ever.

US actress Alexandra Daddario attends the “Baywatch” Photo Call in Berlin on May 30, 2017 in Berlin, Germany. (Photo by Splash News and Pictures)

A motorcyclist ferries a pillion rider sitting on goods in Phnom Penh on June 6, 2017. (Photo by Tang Chhin Sothy/AFP Photo)

Cast member Charlize Theron attends the “Atomic Blonde” World Premiere at Stage Theater on July 17, 2017 in Berlin, Germany. (Photo by Alamy Stock Photo)

Princess Diana relaxes on the sand during a visit to the beach on the Caribbean Island of Nevis January 4, 1993. (Photo by Mark Cardwell/Reuters)

A model on the catwalk for the Tom Ford show at New York fashion week in New York, USA on September 6, 2017. (Photo by Swan Gallet/Shutterstock)

Models prepare themselves backstage ahead of the International Dwarf Fashion Show, on September 26, 2017 in Paris, France. (Photo by Thomas Samson/AFP Photo)

Women take part in Glowork exhibition in Riyadh, Saudi Arabia on September 28, 2017. (Photo by Faisal Al Nasser/Reuters)