NASA Astronaut Loses Wrist Mirror During Works Outside ISS, Reports Say

  • NASA Astronaut Loses Wrist Mirror During Works Outside ISS, Reports Say

NASA Astronaut Loses Wrist Mirror During Works Outside ISS, Reports Say

Astronaut Chris Cassidy lost grip of the mirror on his way for a spacewalk from the International Space Station, and to work on batteries.

Commander Chris Cassidy said the mirror quickly floated away.

Spacewalking astronauts wear wrist mirror on both their suit sleeves to get a better view of things while stepping out of the space station. The mirrors have dimensions of 7 by 12 centimeters and weigh one 50 gram. Once he was in sunlight, Cassidy inspected his sleeve for clues that might explain how the mirror came off but told Mission Control he found no evidence of thread damage.

The new lithium-ion batteries the men are replacing the old batteries with arrived at the International Space Station last month on a Japanese cargo ship.

Their spacewalk is expected to last up to seven hours, and they'll go for round two - which will also be broadcast live - on Wednesday.

There are more batteries that Benhken and Cassidy will plugin before the job is done.

"I think we've done enough for one day", Behnken said.

The spacewalkers removed five of six aging nickel-hydrogen batteries for one of two power channels for the starboard 6 truss, installed two of three new lithium-ion batteries, and installed two of three associated adapter plates that are used to complete the power circuit to the new batteries, said NASA. The big, boxy batteries - more powerful and efficient than the old nickel-hydrogen batteries coming out - keep the station humming when it's on the night side of Earth. It's cumbersome work: Each battery is about a yard (meter) tall and wide, with a mass of 400 pounds (180 kilograms).

Throughout July, before Benkhen travels back to Earth in August, the spacewalks will continue. The missions come after NASA astronauts Christina Koch and Jessica Meir made history when they performed the first-ever all-women spacewalk in October.