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upgrade work continues outside the space

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station an updated strategy for landing

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artemis astronauts on the moon and

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unsealing pieces of the past a few of

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the stories to tell you about this week

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at nasa

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on march 23rd the crew on board the

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international space station conducted

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the second spacewalk this month to

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continue upgrades to the orbiting

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laboratory

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during the outing nasa astronaut rasha

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shari and european space agency

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astronaut matthias maurer worked to

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install new thermal system and

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electronics components on the station's

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u.s segment they also worked to install

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a power and data cable on the columbus

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module's bartolomeo science platform

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replace an external camera on the

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station's truss and conduct other

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upgrades to station hardware

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also on march 23rd we announced plans to

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create additional opportunities for

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commercial companies to develop an

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astronaut moon lander that can transport

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humans between our lunar orbiting space

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station known as gateway and the lunar

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surface for missions beyond artemis iii

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which will be the first mission to land

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astronauts on the moon in more than 50

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years

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the announcement is part of a strategy

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by the agency to pursue two parallel

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paths for continuing lunar lander

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development and demonstration one that

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calls for additional work under an

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existing contract with commercial

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partner spacex and another open to all

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other us companies this effort is meant

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to maximize nasa's support for

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competition and provides redundancy in

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services to help ensure nasa's ability

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to transport astronauts to the lunar

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surface

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one of the last unopened apollo era

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lunar samples collected 50 years ago

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during apollo 17 has been opened at our

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johnson space center in houston

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sample

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73001 had been kept vacuum sealed and in

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pristine condition in anticipation of

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the day that scientists equipped with

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advanced technology could examine it

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the apollo next generation sample

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analysis program is studying the sample

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and others like it as we prepare to send

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astronauts back to the moon for more

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samples on upcoming artemis missions

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on march 21st the number of confirmed

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exoplanets or planets outside of our

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solar system ticked past the 5 000 mark

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the milestone was reached when the

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latest batch of 65 exoplanets was added

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to the nasa exoplanet archive this

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stream of exoplanet discoveries that

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began 30 years ago includes

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contributions from nasa's tess kepler

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and spitzer space telescopes with more

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discoveries possible in the future from

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our james webb and nancy grace roman

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space telescopes

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on march 22nd the newest u.s european

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sea level satellite named sentinel 6

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michael freilich became the official

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reference satellite for global sea level

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measurements this means that sea surface

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height data collected by other

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satellites will be compared to the

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information produced by sentinel 6

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michael freilick to ensure accuracy the

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satellite which is named after nasa's

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former earth science division director

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the late dr michael freilich was

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launched in november 2020.

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that's what's up this week at nasa for