Astronauts repair space station
Tuesday 17 August 2010
Spacewalking astronauts installed a new ammonia pump at the International Space Station yesterday, accomplishing the urgent cooling-system repairs after more than two weeks of impaired operations.
Making his third spacewalk in just 10 days, Douglas Wheelock slid the bathtub-size pump into place then bolted it down as Tracy Caldwell Dyson hooked up power cables.
An initial test proved successful. "Sweet," Mr Wheelock exclaimed.
The astronauts then connected all the ammonia fluid lines. To everyone's relief, the work went smoothly, with no apparent leakage of the toxic substance. During the first spacewalk, ammonia streamed out and forced Nasa to add an extra outing to get the job done.
"We did not see any ammonia come out today, amazingly," Mission Control radioed.
Mr Wheelock proudly showed off the checklist on his arm cuff to the TV cameras. Printed in black ink were the words, "Game over!!"
Flight controllers still have more tests to conduct. If everything goes well, Nasa expects to have the space station's disabled cooling loop back in action by Thursday.
The orbiting lab has been operating on only half its normal cooling capability ever since a crucial ammonia coolant pump failed on 31 July. Science research was halted and unnecessary equipment turned off to avoid overtaxing the single functioning cooling line.
- 1 New Zealand 'the best country to work as a prostitute', says sex worker advocacy group
- 2 Purity balls: Girls in the US making virginity pledges as fathers vow to 'protect purity'
- 3 Mother 'will allow son's circumcision in return for release from prison'
- 5 Female Muay Thai champion hustles coaches to give them a beating
Purity balls: Girls in the US making virginity pledges as fathers vow to 'protect purity'
Puerto Rico, island of lost dreams: People are leaving the debt-hit territory in droves as near neighbour Cuba's star rises
Female Muay Thai champion hustles coaches to give them a beating
16-year-old girl beaten and burned alive by lynch mob in Rio Bravo, Guatemala
Warren Buffett thinks the poor should stop blaming inequality on the rich
As a white man, I'm surprised more women aren't tweeting the hashtag #KillAllWhiteMen
Scotland may have to leave the EU even if it votes to stay in, David Cameron confirms
Report finds that Britain's wages are the most unequal in Europe
The day that Britain resigned as a global power
Almost a third of school pupils believe 'Muslims are taking over our country', study claims
Gay marriage 'Bert and Ernie' cake bakery found guilty of discrimination in Northern Ireland
£40-50K: Guru Careers: We are seeking an experienced Software / C# Developer w...
£35 - 40k + Benefits: Guru Careers: We are seeking a Software Developer (JavaS...
£18000 - £23000 per annum + Commission: SThree: As a Trainee Recruitment Consu...