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STATION NEWS
Europe destroys last space truck to ISS
by Staff Writers
Paris (AFP) Feb 15, 2015


The European Space Agency (ESA) on Sunday said it had destroyed its last supply ship to the International Space Station, bringing a seven-year venture to a successful close.

The last of five robot delivery vessels that ESA pledged for the US-led ISS project, the Georges Lemaitre, burned up in a suicide plunge into Earth's atmosphere, the agency said.

At the control centre in Toulouse, the end of the project was greeted with emotional scenes, according to an ESA tweet, while NASA sent its congratulations, also via Twitter.

The spaceship had separated from the ISS on Saturday at the end of a six-month mission to bring air, water, food and other essentials to the space station's crew.

Nearly 11 metres (32.5 feet) long and weighing around 20 tonnes at launch, the so-called Automated Transfer Vehicles (ATVs) have been a testbed for innovative technology.

After launch by an Ariane 5 rocket from ESA's base in Kourou, French Guiana, they navigated their way to the ISS by starlight and docked automatically.

During their mission, they were used for storage and habitation, and their onboard thrusters boosted the altitude of the ISS, which is in low Earth orbit and plucked by lingering atmospheric molecules.

The ATVs were filled with garbage and human waste for their final trip.

- Emotional scenes -

First launched in March 2008, the five vessels brought up a total of 32 tonnes in resupplies, accounting for ESA's eight-percent share of the ISS's running costs under a barter arrangement.

They were all named after inspirational Europeans in space exploration.

The first, the Jules Verne, was named after the 19th-century French forerunner of science fiction, who wrote "Journey to the Centre of the Earth" and "From the Earth to the Moon."

The following three were named after astronomer Johannes Kepler and physicists Edoardo Amaldi and Albert Einstein. George Lemaitre, a Belgian priest and cosmologist, was father of the "Big Bang" theory of the creation of the Universe.

The cylindrical ATV design is to be adapted to become the service module of NASA's Orion spacecraft, a rocket-and-capsule successor to the US space shuttle.

Sunday's operation previously been set for February 27.

Flight engineers had hoped to test a long and shallow trajectory to see if this would aid planning for the ISS's own destruction, sketched for around 2024.

The ISS has a mass of around 420 tonnes. Its size raises the challenge of destroying as much of the structure as possible to diminish the amount of debris reaching Earth's surface.

The February 27 experiment was scrapped when a fault developed in one of the ATV's four power sources.

The end of the ATV programme means that the ISS's suppliers are Russia's Progress freighter, Japan's HII Transfer Vehicle (HTV) and the Dragon and Cygnus craft built by two NASA-contracted private US firms, SpaceX and Orbital Sciences.

Orbital Sciences suffered a major rocket failure in October, forcing an end to its supply missions until further notice.


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STATION NEWS
Camera to record doomed ATV's disintegration - from inside
Paris (ESA) Feb 11, 2015
Next Monday, ESA astronaut Samantha Christoforetti will float into Europe's space ferry to install a special infrared camera, set to capture unique interior views of the spacecraft's break-up on reentry. "The battery-powered camera will be trained on the Automated Transfer Vehicle's forward hatch, and will record the shifting temperatures of the scene before it," explains Neil Murray, over ... read more


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