I was only in second grade when the Russian Cosmonaut Yuri Gagarin became the first man in space. The night of his launch - April 12, 1961 - I went out onto the front porch and stared up at the stars, trying to see his capsule passing overhead. Like millions of others, I was enthralled by the idea of space exploration and have been ever since.

As always, space remains an unforgiving frontier, and the skies overhead will surely present obstacles and setbacks that must be overcome. But hard challenges demand fresh approaches, and I'm optimistic that Stratolaunch will yield transformative benefits - not only for scientists and space entrepreneurs, but for all of us.

My quest to expand access to space began more than a decade ago, when I teamed up with Burt Rutan at Scaled Composites to build SpaceShipOne. This innovative air-launched vehicle was the world's first private spacecraft to carry an astronaut into sub-orbital space.

Paul Allen Quotes