The unmanned X-37B spacecraft is scheduled to blast off atop a United Launch Alliance Atlas V rocket from Florida's Cape Canaveral Air Force Station, during a four-hour launch window that opens at 10:45 a.m. EDT.
The NASA payload aims to test how the space environment affects certain materials.
The Air Force has revealed that it is collaborating with two organizations to evaluate experiments carried on the space plane's upcoming mission.
Most of the X-37B's payloads and specific activities are classified, so it's not entirely clear what the space plane will be doing once it leaves Earth Wednesday.
A robotic miniature space shuttle on a classified mission for the U.S. Air Force marked its 500th day in orbit on Friday, with no word about when and where the space plane will land. Continue reading →
Amateur astronomers have glimpsed beneath a cloak of secrecy shrouding the military's miniature robotic space shuttle, which was launched last month on a trial run.
The robotic spaceship, which resembles a miniature space shuttle, has spent an unprecedented 15 months in orbit.
On Friday evening, the Air Force's second top secret Orbital Test Vehicle is scheduled to launch from Cape Canaveral Air Force Station in Florida.
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