A newly successful test of a balloon could allow paying human customers to enjoy stunning Earth views and the weightless astronaut experience by 2014.

The test balloon carried a humanoid robot up to an altitude of almost 20 miles (32 kilometers) on Nov. 12 — just a few miles shy of where skydiver Felix Baumgartner leaped from during his "space dive" in October. Startup Zero 2 Infinity wants to eventually offer hours of flight time for space tourists to do whatever they want in a near-space environment.