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‘New port of call’ installed at space station

US astronaut Kate Rubins works on the docking port of the International Space Station on August 19, 2016 © NASA TV/AFP / Lizabeth Menzies

Miami, United States, Aug 19 – With more private spaceship traffic expected at the International Space Station in the coming years, two US astronauts embarked on a spacewalk Friday to install a special parking spot for them.

Americans Jeff Williams and Kate Rubins switched their spacesuits to internal battery power at 8:04 (1204 GMT) and floated outside the orbiting laboratory to begin the work of attaching the first of two international docking adaptors.

The spacewalkers finished the task in just over two hours.

Then, robotic machinery at the space station completed the hard mate, making the attachment permanent.

“With that, we have a new port of call,” said NASA commentator Rob Navias, as the space station flew over Singapore at 10:40 am (1440 GMT).

More work lies ahead in the six-and-a-half-hour spacewalk for the astronauts, who must also connect power and data cables for the adaptor.

US astronaut Kate Rubins works on the docking port — the first of two such additions to the International Space Station © NASA TV/AFP / Lizabeth Menzies

These fittings will enable the space station to share power and data with visiting spaceships.

Williams is making his fourth career spacewalk. He has accumulated 19 hours of spacewalk time so far.

The spacewalk is Rubins’s first. She is the 12th woman to walk in space.

– ‘Gateway to future’ –

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NASA describes the docking adaptor as a “metaphorical gateway to a future” that will allow a new generation of US spacecraft — the first since the space shuttle program ended in 2011 — to carry astronauts to the space station.

The second docking adaptor is expected to be installed in 2018.

ISS operations integration manager Kenneth Todd called Friday’s installation a “very significant milestone on the path to establishing commercial crew capability.”

US astronauts Kate Rubins (bottom) and Jeff Williams (top) make repairs to the International Space Station on August 19, 2016 © NASA TV/AFP / Lizabeth Menzies

Built by Boeing, the circular adaptor measures around 42 inches (one meter) tall and about 63 inches wide.

The adaptors will work with Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon, two spaceships under construction that are planned to ferry astronauts to the space station.

The docking adaptor is more sophisticated than past equipment because it will allow automatic parking instead of the current grapple and berthing process, which is managed by astronauts.

– Spacewalk Sept 1 –

During the last US spacewalk was on January 15, a problem with American Tim Kopra’s spacesuit allowed a small amount of water to build up inside his helmet by the end of the outing.

It was the latest in a series of spacesuit issues, but was not as severe as an emergency in 2013 when Italian astronaut Luca Parmitano’s helmet flooded, forcing him to end his spacewalk early.

NASA commentator Rob Navias said the US space agency has done a thorough review of the spacesuits being worn by Rubins and Williams, and they are in “excellent shape” for Friday’s spacewalk.

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NASA is planning another spacewalk on September 1 to retract one of the thermal radiators outside the space station.

Astronauts unsuccessfully tried to push it back into position last year.


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