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NASA Chief Says Return to Flight Challenges Aren't Technical

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kai_25

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NASA's greatest challenge as it pushes toward renewed space shuttle flights is not technical, but mental, the agency's chief said today.<br /><br />Speaking at a press briefing at its Washington, D.C.-based headquarters, NASA's Chief Administrator Sean O'Keefe said the space agency's prime challenge is working through return-to-flight issues and making judgements that push the process forward. <br /><br />"There are no technical obstacles that are insurmountable," O'Keefe told reporters. "The biggest challenge is to make determinations and judgements…and getting our heads wrapped around the [return to flight] objective."<br /><br />The agency has made some headway as it plans for its first shuttle launch since the loss of Columbia and its seven-astronaut crew during reentry on Feb. 1, 2003. That flight is set for the Discovery shuttle and expected between March and April of 2005. <br /><br />Chief among the progress is the effort to curb foam shedding from shuttle external tanks. A chunk of foam punctured Columbia's left wing during launch. During reentry, hot gases seeped inside that hole and triggered the accident.<br /><br />NASA engineers have developed new fittings and heaters for the tanks - Discovery's included - designed to prevent foam from detaching and striking the shuttle again.<br /><br />"The regime here has been much more rigorous than anything we've seen before," O'Keefe said of the process, adding that there are still foam tests underway. "We haven't made it to parade rest yet, but we're getting pretty close."<br /><br />Hubble and the ISS<br /><br />While O'Keefe has given NASA the go-ahead to develop robotic servicing missions that would prolong the Hubble Space Telescope's life in space, it's unlikely such a mission will receiving funding in the upcoming year.<br /><br />"It's doubtful to make it into the 2005 budget plan," O'Keefe told reporters. "But we're moving forward and we're looking at alternatives."<br /><br />Meanwhile, the agency chief stressed NASA's com
 
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