Today’s NASA spacewalk is the first of three missions outside of the space station scheduled for January, 2020. Astronauts on the ISS are tasked with upgrading the space station’s power systems and a cosmic ray detector.
What time is the NASA spacewalk today?
Coverage of the spacewalk was scheduled to begin around 10.30am GMT (5.30am EST) today.
The entire event will be broadcast live online on NASA TV, which you can watch in the embedded video player below.
US astronaut Jessica Meir shared her excitement for the spacewalk on Twitter.
She tweeted to her more than 157,100 fans: “We may have packed our #spacewalk bags for a bit last October, but this week @Astro_Christina and I will venture back out the hatch to finish the @Space_Station battery upgrade.
“Watch live on @NASA TV this Wednesday, Jan. 15 at 6.50am EST. #AllFemaleSpacewalk.”
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How to watch the NASA spacewalk live online today:
NASA’s first spacewalk of the year also happens to be NASA’s second-ever all-female spacewalk.
Dr Meir and Mrs Koch previously exited the ISS to work on the space station’s batteries on October 18, 2019.
The spacewalk also marked the 221st successful service mission carried out on the ISS in the vacuum of space.
Today (January 15) you can watch the action unfold live courtesy of NASA TV in the embed video player above.
The NASA broadcast will begin around 10.30am GMT (5.30am EST) before Dr Meir and Mrs Koch exit the ISS.
NASA’s astronauts will leave the space station around 11.50am GMT (6.50am EST).
Jessica Meir and Christina Koch are preparing to step outside into the vacuum of space
The spacewalk live stream is hosted on NASA’s official NASA TV YouTube channel.
You can also find the stream on NASA’s UStream page and on NASA TV’s terrestrial broadcasting.
NASA expects the spacewalk to last at least six-and-a-half hours from start to finish.
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What will happen during the NASA spacewalk today?
Astronauts Jessica Meir and Christina Koch are tasked with replacing the space station’s batteries on the Port 6 truss.
The batteries keep the solar-powered space station alive when it passes through the shadow of Earth’s nightside 16 times a day.
As the space station races around the Earth at speeds of more than 17,000mph, the ISS completes a lap around the planet every 90 minutes.
NASA said on Tuesday: “NASA astronauts Jessica Meir and Christina Koch are preparing to step outside into the vacuum of space together in their U.S. spacesuits.
“The duo will replace old nickel-hydrogen batteries with newer, more powerful lithium-ion batteries upgrading station power systems on the Port-6 truss structure.”
The spacewalk will be assisted by ISS Commander Luca Parmitano from the European Space Agency (ESA) and NASA astronaut Andrew Morgan.
The ISS crewmates will assist NASA’s astronauts with the space station’s robotic arm, the Canadarm2.
After the spacewalk wraps up, Dr Meir and Mrs Koch will return into the vacuum of space to continue the servicing on January 20.
NASA said: “A third spacewalk is planned for Jan. 25 with NASA Flight Engineer Andrew Morgan and Commander Luca Parmitano of ESA.
“They will finish the thermal repair work on the Alpha Magnetic Spectrometer they began last year.”
The astronauts began to repair the Alpha Magnetic Spectrometer or AMS last year.
The instrument is a powerful cosmic particle detector designed to help scientists find evidence of dark matter in the universe.
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