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Mysterious US military plane returns to Earth

An unmanned US plane on a top-secret, two-year mission to space has returned to Earth and landed in California.

The aircraft, resembling a miniature space shuttle and known as the Orbital Test Vehicle or X-37B, spent 674 days in orbit around the planet.

It was the unmanned plane’s third space flight, but its mission has been shrouded in mystery.

A theory that it was taking a look at China’s space lab has been downplayed by experts.

Air Force officials have only told US media the aircraft performs “risk reduction, experimentation and concept-of-operations development for reusable space vehicle technologies”.

_78366372_78366371  The first plane flew in April 2010 and returned after eight months. The second launched in March 2011 and remained in space for 15 months.

The current aircraft - built by Boeing - uses solar panels for power in orbit, measures over 29ft (9m) long, has a wingspan of nearly 15ft and a weight of 11,000lbs (4,989 kg).

It looks like a mini space shuttle and can glide back down through the atmosphere to land on a runway, just like Nasa’s re-usable manned spaceplane used to do before its retirement._78367238_secret3

A fourth X-37B mission is said to be planned for launch from Cape Canaveral, Florida, in 2015.

Europe is to test its own automated space plane technology in the coming weeks.

The IXV vehicle will be launched into space atop a rocket from French Guiana and then make its way back through the atmosphere to splash down in the ocean.

The reality is that no-one really knows what this vehicle does. The only credible explanation I have seen is that it is testing technologies that could find their way on to future satellite missions.

If you consider how expensive a satellite mission is - several hundred million dollars - you’d like to be sure that any innovations are going to work straight out of the box.

By flying early prototypes on the X-37B, you can test these technologies so that when you put them on future satellite missions, you can be sure they will deliver.

Nasa recently agreed to give over work space formerly used to service the shuttles at the Kennedy Space Center to the X-37B programme, which tells us this is a long-term project for the Air Force. Whatever it is they are doing up there, they deem it to be high value.

By Edos News

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