Spacewalks & EVAs

Amidst of the controversy with the delay and aborting Discovery's launch, NASA had to compromise their restrictions to make way for their return to space flight and they paid the price with having Discovery's orbiter damaged during the lift off.

Now it's up to the Discovery crew to carry out the precautious mission. The seven crew members started off with inspecting the shuttle's heat shield. It's believed there are protrusions in gap filler used to hold ceramic tiles in place. The tiles are used to deflect heat during re-entry. Fixing the problem would require cutting or pulling out the hanging material or shoving it back into the area between the thermal tiles, so that there are no parts exposed to over heating during re-entry. NASA engineers are trying to determine whether the repairs could help the heat shield sustain a level of heating within the safety limits so that the shuttle could make a safe re-entry in to Earth's orbit.

After all the fact finding and logical engineering, Astronauts Stephen Robinson and Soichi Noguchi wrapped up the first spacewalk today, testing heat-shield repair techniques, hot wiring one of the space station's gyroscopes and mounting an attachment device that later will hold a large external tool kit and spare parts box. Mission Control didn't fail to acknowledge "You did a great job today!"

This one was the 59th spacewalk devoted to station assembly and maintenance, pushing the cumulative total to 355 hours and five minutes by 40 NASA astronauts, 10 Russian cosmonauts, one Canadian, one Frenchman and now, one Japanese.

The Discovery crew will continue their space walks until a final decision is made on the repair. It may all sounds like the fun stuff in Jetsons, but they could only wish it was that simple!

User Naz   Post Date Sunday, July 31, 2005 | Comments (0)

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