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Tuesday 7 February 2023 Dublin: 9°C
Spacewalkers finish solar panel preparation for station power boost
The equipment will support the first set of improved solar panels, due to arrive in June.

SPACEWALKING ASTRONAUTS HAVE completed the first round of preparation work for new solar panels, part of a major power upgrade at the International Space Station.

Nasa’s Kate Rubins and Japan’s Soichi Noguchi installed mounting brackets and struts for the improved solar wings due to arrive in June.

They also tightened some sticky bolts that hampered Sunday’s spacewalk and left some duties undone.

Towards the end of the seven-hour spacewalk, Ms Rubins reported a mark on the index finger of her right glove, where she had earlier said there was some peeling.

“I don’t know what to think about the glove. But it’s just kind of a pinpoint hole,” she told Mission Control.

Ms Rubins said she was “mildly concerned” about going too far from Mr Noguchi because of her glove, and he accompanied her back to the hatch. Mission Control called it quits at that point and told the astronauts to skip extra chores.

A Nasa spokesman at Johnson Space Centre in Houston, Rob Navias, said Ms Rubins’ suit pressure held perfectly throughout the spacewalk.

“At no time was she in any danger,” he said in an email.

Nasa is enhancing the space station’s power grid to accommodate more astronauts and experiments, now that SpaceX is launching crews and Boeing should be too by year’s end.

The eight solar panels have degraded over time; the oldest were launched 20 years ago.

The six new solar wings — smaller but more efficient — will fit over the older ones and boost the station’s power capability by up to 30%.

Boeing is supplying the panels, which will be launched in pairs by SpaceX over the next year.

On Sunday, a number of stubborn bolts prevented Ms Rubins and Nasa astronaut Victor Glover from completing the support setup.

As the spacewalk ended, Mission Control congratulated Mr Noguchi for having the longest gap between spacewalks: fifteen-and-a-half years.

His previous three spacewalks occurred in 2005, during the first shuttle flight following the 2003 Columbia disaster.

This should be the last spacewalk for the station’s current residents, whose half-year missions are coming to a close.

Ms Rubins will return to Earth in mid-April in a Russian capsule, along with two Russians. Mr Noguchi, Mr Glover and two other Nasa astronauts will fly SpaceX back in late April or May.

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