NASA astronauts Jessica Meir and Christina Koch ventured out of the space station shortly before 7 a.m. Eastern Time for the first spacewalk of 2020. Their mission is to replace batteries on solar arrays on the outside of the ISS.
About a half hour into the spacewalk, Koch’s helmet video camera system and lights came loose and the astronauts tried to reattach it to grooves on the helmet. Mission Control then advised them to stow it rather than waste time. At one point, the astronauts asked if the spacewalk would continue, given the lack of lighting for Koch.
“Good question and yes we will continue and try and keep you two together as much as possible,” Mission Control replied.
“Great,” one said. “Perfect,” said the other. Earth was visible below.
“Just be careful,” Mission Control told Koch. “You’re missing that additional protection.”
The problem put the mission, which is expected to last several hours, around 30 minutes behind schedule.
NASA said that Meir and Koch would be replacing nickel-hydrogen batteries with new lithium-ion batteries that store power generated by the solar arrays on the ISS’s port truss. They are scheduled to conduct a second spacewalk on Monday to finish the battery replacement.
These will be the second and third spacewalks for Meir and the fifth and sixth for Koch.
If the battery replacement work goes as planned, NASA astronaut Andrew Morgan and space station Commander Luca Parmitano from the European Space Agency will exit the station January 25, to finish installing the Alpha Magnetic Spectrometer’s (AMS) new cooling apparatus and lines begun in November and December, and verify they are ready for use.
The spectrometer is searching for dark matter and antimatter in the universe.
NASA said Wednesday’s spacewalk is the 225th conducted at the International Space Station.