A pair of astronauts have ventured outside the International Space Station some 254 miles above Earth for a spacewalk that is being streamed live by NASA.
U.S. Commander Chris Cassidy said the mirror floated away at about 0.3 meters per second. And if you are worrying if the mirror will pose any threat or risk to the station or the spacewalk, NASA confirmed it will not.
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.
In big and boxy sizes, these batteries must be powerful and efficient than the older batteries of nickel-hydrogen, so the station keeps humming when it is on the planet's night side.
The battery replacements began in 2017, with previous crews putting in 18 lithium-ion batteries, half as many as the old ones replaced.
Their spacewalks are expected to continue through July before Behnken returns to Earth in August aboard a SpaceX Dragon capsule. Behnken and Doug Hurley made history at the end of May with SpaceX's first astronaut launch.
This was the seventh spacewalk for both men.
According to Mission Control, the mirror went detached from the spacesuit of Cassidy. Each has spent more than 30 hours out in the vacuum of space.
The two spacewalks will be the 228th and 229th in support of space station assembly, maintenance and upgrades, NASA said.
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