• The X-37B landed in California early Saturday morning  
  • The space plane has been circling the Earth at 17,000mph and was originally due to land in December
  • Mission of highly classified robotic plane extended for unknown reasons

By Rob Waugh, Daily Mail Reporter and Reuters Reporter


After 15 months in orbit the U.S Air Force’s highly secret unmanned space plane successfully touched down yesterday, and it’s highly anticipated landing was caught on film.

The military's unmanned X-37B robotic space shuttle returned from orbit at 5:48 a.m. in California from a secretive test flight.

And now officials from the Vandenberg Air Force Base have released a short video of the smooth landing.

The first part of the 1.17 minute video, which captured the plane’s final descent, is shot in infrared light.

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Home: The military's unmanned X-37B robotic space shuttle returned from orbit at 5:48 a.m. in California from a secretive test flight, Air Force officials confirmed

Home: The military's unmanned X-37B robotic space shuttle returned from orbit at 5:48 a.m. Saturday in California from a secretive test flight, Air Force officials confirmed

Back: An infrared view shows the X-37B unmanned spacecraft landing at California's Vandenberg Air Force Base, 130 miles northwest of Los Angeles

Back: An infrared view shows the X-37B unmanned spacecraft landing at California's Vandenberg Air Force Base, 130 miles northwest of Los Angeles

The plane’s belly and nose glow bright orange showing the retained heat from piercing through the earth’s atmosphere.

After the plane touches down the film switches out of the infrared light, showing the shuttle in good shape after its mysterious mission.

The miniature space plane touched down at California's Vandenberg Air Force Base, 130 miles northwest of Los Angeles. It was only the second U.S. vehicle to make an autonomous runway landing from space.

The space plane, also known as Orbital Test Vehicle-2, or OTV-2, fired its engine to slip out of orbit, then pierced through the atmosphere and glided down the runway  - just as an ordinary airplane would.

'With the retirement of the space shuttle fleet, the X-37B OTV program brings a singular capability to space technology development,' said Lieutenant Colonel Tom McIntyre, X-37B program manager.

'The return capability allows the Air Force to test new technologies without the same risk commitment faced by other programs. We're proud of the entire team's successful efforts to bring this mission to an outstanding conclusion.'

The military's first X-37B debuted in 2010 and autonomously landed at Vandenberg after 224 days in space.

Smooth landing: The unmanned Air Force space plane steered itself to a landing early Saturday capping a 15-month clandestine mission

Smooth landing: The unmanned Air Force space plane steered itself to a landing early Saturday capping a 15-month clandestine mission

Returned: The space plane, also known as Orbital Test Vehicle-2, or OTV-2, fired its engine to slip out of orbit, then pierced through the atmosphere and glided down the runway like an airplane would

Returned: The space plane, also known as Orbital Test Vehicle-2, or OTV-2, fired its engine to slip out of orbit, then pierced through the atmosphere and glided down the runway like an airplane would

Enlarge   This computer image shows the space plane re-entering Earth

This computer image shows the space plane re-entering Earth. Although it resembles a small space shuttle it is not designed to carry humans. It's wingspan is a mere 4.5m with a length of 8.9m. It is powered by batteries and solar cells

The former Soviet Union's Buran space shuttle, which made a single spaceflight in 1988, was the first ship to make an autonomous landing from orbit.

The military will not disclose what OTV-2 was doing during its 15 months in orbit, but a third mission already is on the calendar for launch this fall. OTV-2 blasted off aboard an unmanned Atlas 5 rocket from Cape Canaveral Air Force Station on March 5, 2011.

At launch, the space plane was accompanied by staff in biohazard suits, leading to speculation that there were radioactive components on board.

Boeing Phantom Works built two of the robotic space planes, which resemble diminutive space shuttle orbiters, as test vehicles.

The military, which took over the program from NASA, says it is using them to learn how to quickly and inexpensively refurbish reusable spaceships for flight.

However, the ultimate purpose of the mission has largely remained a mystery.

Questions: The unmanned space plane is the second of its kind to be sent up by the U.S. Air Force - but its purpose has never fully been explained

Questions: The unmanned space plane is the second of its kind to be sent up by the U.S. Air Force - but its purpose has never fully been explained

Finishing touches: Scientists in protective suits inspect the solar-powered craft prior to its mission

Finishing touches: Scientists in protective suits inspect the solar-powered craft prior to its mission

The top-secret robot plane is now expected to land in mid- to late-June

The top-secret robot plane is expected to land Saturday - weather and technical issues permitting

The X-37Bs also serve as orbital test beds for instruments that could be incorporated into future satellites.

It is not known if it carried anything in its cargo bay, which is about the size of a pickup truck bed.

The vehicles look like miniature versions of NASA's now-retired space shuttle orbiters, with a similar shape and a payload bay for cargo and experiments.

They are 8.9 metres long, compared to the shuttle's 37-metre length, and have a wingspan of 4.5 metres, compared to the shuttle's wingspan of 23.7 meters.

The solar-operated vehicles were designed to stay in orbit for up to 270 days. OTV-2 surpassed that milestone by 199 days.

Keeping watch: An artist's rendition of the X-37B shuttle orbiting the Earth

Keeping watch: An artist's rendition of the X-37B shuttle orbiting the Earth

It's still not clear who or what the plane is meant to be watching

The X-37B due to fly this fall is the vehicle that inaugurated the program in 2010,'

However, many skeptics think that the vehicle's mission is defence or spy-related.

There are rumours circulating that the craft was kept in space longer than initially intended 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.’

The X-37B sits on top of an Atlas V rocket as it's launched at Cape Canaveral Air Force Station in Florida

Lift off: The X-37B sits on top of an Atlas V rocket as it's launched at Cape Canaveral Air Force Station in Florida

gf Ready for launch: The X-37B rocket in Florida before it blasted off into space

prototype

Mystery: Scientists work on a prototype for the rocket prior to its launch

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.

Other industry analysts have speculated that the Air Force is just making use of the X-37B’s amazing fuel efficiency and keeping it in space for as long as possible to show off its credentials and protect it from budget cuts.

After all, under budget cuts for 2013 to 2017 proposed by the Obama administration, the office that developed the X-37 will be shut down.

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.

Watch video here


Here's what other readers have said. Why not debate this issue live on our message boards.

The comments below have not been moderated.

News media have problems with the term "Secret". Strange since they consider everything they do as "secret" and priveleged information. I'm impressed the Air Force is doing something other than catering to the media.

I thought this thing already landed? Unless the last story the DM did on it was a pre-landing story that went with the pre, pre landing story it did before that?

I think the laser was used over Iran.

Curious. Did not the DM report on the return of this plane a month ago? I know I read the story in the DM because I'm always curious about the "comments" of other readers from other countries and their conspiratorial views surrounding this aircraft. When I read in US media reports this week that the plane was due to land I was a little surprised because I had read in the DM about a month ago that it had already landed.

Yeh, it's a RyanAir flight from Paris to Heathrow. A year late? That's about average. They'll probably surcharge the passengers for extra parking or using the bathroom more than once.

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