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A new source of power for the space station …
Targeting a second Green Run hot fire test …
 \h

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And another major boost for our Space\h
Launch System rocket … a few of the\h\h

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stories to tell you about – This Week at NASA!
On Feb. 1, our Mike Hopkins and Victor Glover\h\h

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completed a 5-hour-20 minute spacewalk outside\h
the International Space Station to replace\h\h

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batteries for the solar arrays and upgrade some\h
of the station’s external cameras. The spacewalk\h\h

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capped off a four-year effort to replace aging\h
nickel-hydrogen batteries with new lithium-ion\h\h

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batteries. Two additional spacewalks planned for\h
the near future will focus on work needed for the\h\h

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installation of new solar arrays, which will\h
increase the station’s existing power supply.
 \h

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NASA is targeting the week of Feb. 21 for a\h
second Green Run hot fire test of the Space Launch\h\h

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System or SLS rocket’s core stage, using the\h
B-2 Test Stand at our Stennis Space Center.\h\h

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The exact date for the test will be set\h
following a test readiness review. The hot\h\h

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fire is the final in a series of eight tests\h
to ensure the core stage is ready for Artemis\h\h

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I – the first uncrewed mission around the Moon\h
and back with the SLS and our Orion spacecraft.
 \h

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Meanwhile, engineers have been busy moving\h
the SLS’s twin solid rocket boosters onto\h\h

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the mobile launcher at our Kennedy Space Center.\h
The boosters will help power the rocket during the\h\h

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launch phase of Artemis I. Following the final\h
Green Run test at Stennis, the core stage will\h\h

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be shipped to Kennedy and integrated with the\h
boosters, the Orion spacecraft and other hardware\h\h

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in preparation for the Artemis I mission.
NASA and SpaceX are targeting a no earlier\h\h

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than April 20 launch for Crew-2 – the second\h
crew rotation mission to the International Space\h\h

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Station on an American rocket and spacecraft from\h
the United States. The crew includes our Shane\h\h

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Kimbrough and Megan McArthur, as well as the Japan\h
Aerospace Exploration Agency’s Akihiko Hoshide,\h\h

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and Thomas Pesquet of the European Space\h
Agency. This will be the first mission to\h\h

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fly two international partner crew members\h
as part of our Commercial Crew Program.

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Our Psyche mission is moving into the final\h
phase of operations before its scheduled\h\h

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launch in August 2022. The mission will study\h
a metal-rich asteroid orbiting the Sun in the\h\h

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main asteroid belt between Mars and Jupiter.\h
It’s believed this asteroid could be the heart\h\h

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of an early planet that lost its outer layers.\h
Exploring the asteroid could lend valuable insight\h\h

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into how Earth and other planets formed.
Our Mars 2020 Perseverance rover is scheduled\h\h

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to land on the Red Planet Feb. 18. But technology\h
that will land with it is already paying off on\h\h

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Earth. For instance, technology used by the drill\h
the rover will use to collect samples of Martian\h\h

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soil is available to help geologists study our\h
home planet. Space-grade circuitry within the\h\h

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lander's camera system has led to innovations in\h
the manufacturing of printed circuit boards. And\h\h

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a laser used to identify organics and minerals\h
could revolutionize how we treat infections,\h\h

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clean wastewater, and more. For more about how\h
NASA brings space technology down to Earth,\h\h

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visit: spinoff.nasa.gov. For more on\h
Perseverance check out: mars.nasa.gov/mars2020.

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NASA is remembering Millie Hughes-Fulford, a\h
research scientist who became the first female\h\h

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payload specialist selected by NASA in June 1983.\h
In 1991 she flew aboard space shuttle Columbia\h\h

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on STS-40, the first Spacelab mission\h
dedicated to biomedical studies.\h\h

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That 9-day mission – the first NASA mission\h
with three women on its crew – brought\h\h

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back more medical data than any previous NASA\h
mission. Millie Hughes-Fulford was 75 years old.