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August 5, 2005
By Jeff Franks, Reuters
Her comments came as NASA pondered whether to send astronauts out on an
extra spacewalk to repair additional heat-protection damage on the first
shuttle mission since the 2003 Columbia disaster.
Discovery is linked with the International Space Station and orbiting
220 miles above the Earth.
"Sometimes you can see how there is erosion, and you can see how there
is deforestation. It's very widespread in some parts of the world,"
Collins said in a conversation from space with Japanese officials in
Tokyo, including Prime Minister Junichiro Koizumi.
"We would like to see, from the astronauts' point of view, people take
good care of the Earth and replace the resources that have been used,"
said Collins, who was standing with Japanese astronaut Soichi Noguchi in
front of a Japanese flag and holding a colorful fan.
Collins, making her fourth shuttle flight, said the view from space made
clear that Earth's atmosphere must be protected, too.
"The atmosphere almost looks like an eggshell on an egg, it's so very
thin," she said. "We know that we don't have much air, we need to
protect what we have."
While Collins and Noguchi chatted, NASA officials were deciding whether
a rip in an insulation blanket that protects part of the shuttle surface
could tear off and strike the spacecraft when Discovery re-enters the
atmosphere, possibly causing damage.
Deputy shuttle program manager Wayne Hale said NASA's concern stemmed
from an abundance of caution since Columbia.
"I think in the old days we would not have worried about this so much,"
he said in a briefing. The agency was to decide later Thursday whether
to order a spacewalk to repair the blanket. The spacewalk would take
place Saturday if needed.
Noguchi and astronaut Steve Robinson already have done three spacewalks,
including a landmark walk Wednesday to remove loose cloth strips
protruding from Discovery's belly. NASA feared the strips could cause
dangerous heat damage when the shuttle lands Monday.
After Discovery comes home, there may not be a shuttle mission for a
while because NASA has suspended flights until it figures out how to
stop insulation foam from the spacecraft's external fuel tank from
coming loose at launch.
Loose tank foam was blamed for the break up of Columbia over Texas on
Feb. 1, 2003, and was spotted again when Discovery blasted off on July
26.
A report in The New York Times suggested NASA was not as careful as it
could have been about the loose foam issue.
A briefcase-size piece of foam broke from its fuel tank and struck
Columbia at launch, punching a hole in its wing heat shield. Sixteen
days later, superheated gases entered the breach as the ship descended
into the atmosphere for landing, causing it to break apart and killing
its seven astronauts.
NASA spent 2 1/2 years and $1 billion on safety upgrades after Columbia
and was dismayed to see loose foam at Discovery's launch.
The Times said an internal NASA memo, written in December by a retired
NASA engineer brought back to monitor the quality of the foam operation,
complained deficiencies remained in the way foam was being applied to
the fuel tank and warned "there will continue to be a threat of critical
debris generation."
A NASA spokesman told the newspaper a response to the memo had been
written, but could not be released because of confidentiality rules.
A spokesman at Johnson Space Center in Houston told Reuters he had not
yet seen the Times report and could not comment.
Source: Reuters |


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