Europe is getting out of the outer space delivery business. The European Space Agency鈥檚 final uncrewed Automated Transfer Vehicle (ATV) is set to blast off tonight from Kourou, French Guiana, to the International Space Station. But lessons learned from operating the craft could help astronauts return to the moon.
The final ATV mission will deliver a variety of experiments along with food, fuel and other supplies. These include an electromagnetic levitator capable of heating metals to 2100 掳C and rapidly cooling them, allowing astronauts to study how alloys form in space and whether microgravity changes their properties. Also on board is a force-feedback joystick, designed to study how future astronauts might remotely control robots in space. The ISS crew will test it by playing a version of the game Pong.
Five ATV resupply missions, starting in 2008, served as payment in kind to NASA for allowing European access to the station. Capable of carrying nearly 8 tonnes to orbit, ATVs are the largest of the international fleet that resupplies the station. After making their delivery, they are used to dispose of waste and so burn up in the atmosphere after leaving the station. However, now that private vehicles from SpaceX and Orbital Sciences are starting to take up the slack, the ESA has its eyes on crewed space flight.
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Shoot for the moon
鈥淓SA decided not to build a sixth ATV, but to embark on the Orion service module cooperation with NASA,鈥� says Nico Dettmann, the ESA鈥檚 head of space transportation. Orion is NASA鈥檚 next-generation spacecraft, designed to let humans travel beyond low Earth orbit once again. ATV-derived technology will provide Orion with fuel, air, solar power and manoeuvring thrusters required for planned missions to the moon in 2017 and 2019. The ESA鈥檚 stint as a delivery firm demonstrated it has the capability to provide what NASA needs, says Dettmann.
鈥淚f we had not done ATV, Europe would not have been able to get involved in Orion,鈥� agrees Bart Reijnen of Airbus Defence and Space, the ESA鈥檚 contractor for building the ATV. Even this final flight is experimental, he says, as it will test a laser radar system designed for rendezvousing with 鈥渦ncooperative鈥� targets like dead satellites that aren鈥檛 fitted with docking equipment.
The ATV has been expensive to develop, but it has also provided Europe with its own capabilities to operate a crewed space facility, says , director of the Space Policy Institute at George Washington University in Washington, DC. 鈥淭he European contribution [to NASA] is certainly helpful and hopefully will continue to grow.鈥�
