The X-37B has been circling the Earth at 17,000mph and was due to land in California in December.
The U.S Air Force’s highly secret unmanned space plane was supposed to
stay in space for nine months, but it’s now been there for a year and
three days – and no one knows what it’s doing.
The experimental craft has been circling Earth at 17,000 miles per hour and was due to land in California in December.
However the mission of the X-37B orbital test vehicle was extended – for unknown reasons.
The plane resembles a mini space shuttle and is the second to fly in space.
The first one landed last December at Vandenberg Air Force Base in California after more than seven months in orbit.
The 29-foot, solar-powered craft had an original mission of 270 days.
The Air Force said the second mission was to further test the technology
but the ultimate purpose has largely remained a mystery.
The vehicle’s systems program director, Lieutenant-colonel Tom McIntyre,
told the Los Angeles Times in December: ’We initially planned for a
nine-month mission. Keeping the X-37 in orbit will provide us with
additional experimentation opportunities and allow us to extract the
maximum value out of the mission.’
Finishing touches: Scientists in protective suits inspect the solar-powered craft prior to its mission.
However, many sceptics think that the vehicle’s mission is defence or spy-related.
There are rumours circulating that the craft has been kept in space to spy on the new Chinese space station, Tiangong.
However, analysts have pointed out that surveillance would be tricky, since the spacecraft would rush past each other at thousands of metres per second.
And Brian Weeden, from the Secure World Foundation, pointed out to the BBC: ‘If the U.S. really wanted to observe Tiangong, it has enough assets to do that without using X-37B.’
Last May, amateur astronomers were able to detect the orbital pattern of the first X-37B which included flyovers of North Korea, Iraq, Iran, Pakistan and Afghanistan, heightening the suspicion that the vehicle was being used for surveillance.
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According to X-37B manufacturer Boeing, the space plane operates in low-earth orbit, between 110 and 500 miles above earth. By comparison, the International Space Station orbits at about 220 miles.
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