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The US military's X-37B space plane landed at NASA's Kennedy Space Center on Sunday, ending its record-breaking 718-day orbit with a sonic boom during its first landing in Florida. The US Air Force has two X-37B Orbital Test Vehicles, which it calls its newest and most advanced reentry spacecraft.
The most recent X-37B mission, launched in May 2015, brings the orbital test vehicle program to a total of 2,085 days spent in orbit.
Amateur astronomers have been able to spot the craft through telescopes and observed it at relatively low altitudes — a little less than 200 miles up, according to some, which is lower than the International Space Station.
What the X-37Bs have doing during those 2,085 days in orbit is less clear, however.
http://www.businessinsider.com/deta...pace-plane-that-spent-2-years-in-space-2017-5
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Back from our moon base so soon?
The most recent X-37B mission, launched in May 2015, brings the orbital test vehicle program to a total of 2,085 days spent in orbit.
Amateur astronomers have been able to spot the craft through telescopes and observed it at relatively low altitudes — a little less than 200 miles up, according to some, which is lower than the International Space Station.
What the X-37Bs have doing during those 2,085 days in orbit is less clear, however.
http://www.businessinsider.com/deta...pace-plane-that-spent-2-years-in-space-2017-5
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Back from our moon base so soon?