A Look at the History of Suborbital Spaceflight

Neil Armstrong with the X-15 on the dry lake bed at Edwards Air Force Base, Calif.

With Richard Branson once again predicting that Virgin Galactic will fly SpaeShipTwo into space before the end of the year, it seems like a good time to take a look at the history of suborbital spaceflight.

The number of manned suborbital flights varies depending upon the definition you use. The internationally recognized boundary is 100 km (62.1 miles), which is also known as the Karman line. The U.S. Air Force awarded astronaut wings to any pilot who exceeded 80.5 km (50 miles).

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Mojave Journal: The Ansari X Prize’s Awkward Family Reunion

Ansari X Prize 10th anniversary panel discussion on Oct. 4, 2014.
Ansari X Prize 10th anniversary panel discussion on Oct. 4, 2014.

One Year Ago, the Ansari X Prize Turned 10
It Was an Uncomfortable Birthday

By Douglas Messier
Managing Editor

The planes kept coming and coming. One after another, they swooped out of a blue desert sky and touched down on the runway at the Mojave Air and Space Port. By mid-morning there were at least a dozen private jets stretched along the flight line running east from the Voyager restaurant toward the control tower. And even more were on their way.

And to what did Mojave owe this ostentatious display of wealth by the 1 percenters? They had come to the sun-splashed spaceport last Oct. 4 to celebrate the 10th anniversary of the Ansari X Prize. A decade earlier, Burt Rutan and his Paul Allen-funded team had won $10 million for sending the first privately-built manned vehicle into space twice within a two-week period.

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