Spacewalking astronauts prep for 2021 Russian lab onset

Spacewalking astronauts prep for 2021 arrival of Russian lab

“Congratulations. You are out!” Russian Mission Control radioed from near Moscow

 Cape Canaveral:NASA astronauts, from left, Victor Glover, Michael Hopkins, Shannon Walker, and Japan Aerospace Exploration Agency astronaut Soichi Noguchi leave the Operations and Checkout Building on their way to launch pad 39A for the SpaceX Crew-1 mission to the International Space Station at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, Nov. 15, 2020. Credit: AP/PTI Photo

The International Space Station's two Russian astronauts ventured out on a spacewalk on Wednesday to prepare for next year's arrival of a long-delayed lab.

Commander Sergey Ryzhikov and Sergey Kud-Sverchkov — dubbed Sergey 1 and Sergey 2 by flight controllers — left four Americans and one Japanese inside.

The space station population grew to seven late Monday with the arrival of a SpaceX capsule, making the company's second astronaut flight.

Ryzhikov and Kud-Sverchkov, on their first spacewalk, spent nearly two hours doing extra leak checks before exiting from an air lock. The compartment has been at the space station since 2009 but it was being used for the first time by spacewalkers.

“Congratulations. You are out!” Russian Mission Control radioed from near Moscow.

Russia's old spacewalking compartment will be removed and junked next year to make room for the research lab Nauka — Russian for “science.”

Several Russian-directed spacewalks will be required to deal with all this. The plan calls for attaching a cargo ship to the old Pirs module in order to guide it to a fiery reentry.

The new 22-ton lab — stretching 43 feet (13 m) long — is so big that it will be launched from Kazakhstan by a powerful Proton rocket. Once at the orbiting outpost, it will double as an air lock and docking port.

The science lab's launch — nearly a decade late because of a long string of repairs — is targeted for sometime early next year.

Ryzhikov and Kud-Sverchkov arrived with an American last month on a Soyuz capsule. Like the newly arrived SpaceX crew, the Russian-launched astronauts will remain on board until spring.

Get a round-up of the day's top stories in your inbox

Check out all newsletters

Get a round-up of the day's top stories in your inbox