Longer life for space station?
2008-11-26 20:02
The Hague - The European Space Agency (ESA) on Tuesday said it hoped the International Space Station (ISS), whose operational life beyond 2015 remains uncertain, would continue working until at least 2020.
"We are pushing and hoping it can go longer than that (2015), at least until 2020," said ESA spokesman Franco Bonacina on the first day of a ministerial-level conference gathering the 18 ESA members plus Canada.
Following the addition to the ISS this year of the European laboratory Columbus, "we are now in the position to exploit the ISS" for scientific work, Bonacina said.
Europe's contribution to ISS is a key issue in the two-day talks in The Hague focusing on spending plans.
ESA has suggested a budget of €10.4bn to fund its existing and future schemes.
However, its director-general Jean-Jacques Dordain, has said he will be satisfied with €9.3bn, an increase of 15% over current spending, Bonacina said.
The main European additions to the ISS, which celebrated its 10th birthday on November 20, have been the Columbus science lab and the Automated Transfer Vehicle (ATV) supply craft.
The US-led orbital construction project has been hit by cost overruns and delays, many of them linked to the loss of the space shuttle Columbia in 2003.
European scientists and policymakers have fretted that, with a 2015 closedown, there would be scant time for making use of their ISS investment.
Spending plans under the microscope in The Hague include €1.4bn for the ISS from 2008 to 2012.
Soyuz only option
The US space shuttle fleet is due to retire from service in 2010, and its replacement, by a rocket-and-capsule system, is unlikely to be phased in before 2015.
As a result, the only crew transport to the ISS in the interim lies with Russia's Soyuz spacecraft.
European countries are facing calls to transform the ATV from a one-way freight carrier into a vessel able to return objects to Earth, and later to upgrade it to carry personnel.
A preliminary study, costing €30m, will assess the feasibility of the first phase of this scheme.
Among other proposals, ESA's scientific programme would be endowed with between €2.1 and 2.2bn for 2009-2013, an increase of 3.5% per year over the current allocation.
France, meanwhile, is pushing a new second-stage cryogenic motor that would boost the lifting capacity of the Ariane 5 from 10 tonnes to 12 tonnes, for a payload to be placed in geostationary orbit.
The first phase of work in this field is estimated at €340m.
The agency is also seeking €850m for the second phase of an EU-led earth-monitoring system called Kopernikus, previously known as the Global Monitoring for Environment and Security (GMES).