Space shuttle can fly beyond 2010, if money is there - Nasa

The US space shuttle fleet can continue flying beyond Nasa's September 30 deadline if the money is made available to keep it going, according to a US space agency official.

"I think the real issue that the agency and the nation has to address is the expense," said space shuttle programme manager John Shannon, noting the shuttle fleet costs the National Aeronautics and Space Administration $200 million per month to maintain it in working condition.

"Where that money comes from is the big question," he added.

Mr Shannon's briefing was about Nasa's April 5 Discovery mission to the orbiting International Space Station (ISS), one of three shuttle flights remaining before the programme is shut down at the end of September after 29 years of service.

Several lawmakers have recently urged the shuttle programme be extended to reduce US dependency on Russia's Soyuz spacecrafts in order to continue building the ISS until the shuttle's successor can take off by 2015 at the earliest.

Taking up her colleagues' concerns, Republican Senator Kay Bailey Hutchison last week presented a Bill calling for extending the shuttle programme beyond its termination deadline.

On presenting his 2011 budget plan in January, US President Barack Obama confirmed the shuttle fleet's demise this year, as well as dropping the Constellation programme his predecessor George W. Bush announced in 2004 to return Americans to the moon by 2020.

Constellation included the development of the Ares 1 rocket, and its abandonment has also put into question the feasibility of the shuttle's successor spacecraft.

Mr Obama also asked Nasa to partner with the private sector, using funds from an economic stimulus package to develop low-cost, primary services transporting astronauts to the ISS.