Skip to main content

Watch NASA’s new solar array unfurl on the space station

A new rollout solar array on the ISS.
A view of the new rollout solar array unfolding after NASA astronauts Steve Bowen and Woody Hoburg successfully installed it to the 1B power channel on June 15, 2023. NASA TV

Two NASA astronauts completed a successful spacewalk at the International Space Station on Thursday.

Woody Hoburg and Steve Bowen ended their extravehicular activity at 2:17 p.m. ET after spending 5 hours and 35 minutes working on the outside of the orbital outpost.

The pair accomplished the mission’s main goal, which was to install an IROSA (International Space Station rollout solar array) designed to boost power generation on the Earth-orbiting satellite.

NASA lives streamed the entire spacewalk and later released footage of the array slowly unfurling on the space station about 250 miles above Earth.

The roll-out solar array installed earlier today by @NASA_Astronauts Steve Bowen and @Astro_Woody unfolds as Earth glows in the background. When fully unrolled, it will span 60 feet long by 20 feet wide. Watch live… https://t.co/cBNqC5Ke07 pic.twitter.com/DRaNzqrqFw

— International Space Station (@Space_Station) June 15, 2023

“The new array is 60 feet long by 20 feet wide (18.2 meters by 6 meters) and is shading a little more than half of the original array, which is 112 feet long by 39 feet wide,” NASA said in a report on Thursday’s spacewalk. “Each new IROSA produces more than 20 kilowatts of electricity and together enable a 30% increase in power production over the station’s current arrays.”

The work on upgrading the station’s power supply has been going on for several years and is still not complete, with additional arrays scheduled to be delivered and installed in 2025.

This week’s excursion was the 265th spacewalk in support of space station assembly, upgrades, and maintenance, NASA said.

It was the second spacewalk for Hoburg following his first one earlier this month, which the 37-year-old American described as “an incredible life experience.”

For Bowen, however, it was his 10th such activity, enabling him to share the record for the most spacewalks by a U.S. astronaut with Mike Lopez-Alegria, Bob Behnken, Peggy Whitson, and Chris Cassidy.

Astronauts began staying on the space station in 2000, and since then, it has been constantly inhabited by rotating crews. Despite the current power upgrades, the aging facility is likely to be decommissioned in 2031, though astronauts will continue to live and work in low-Earth orbit by staying aboard new, privately funded stations.

Trevor Mogg
Contributing Editor
Not so many moons ago, Trevor moved from one tea-loving island nation that drives on the left (Britain) to another (Japan)…
NASA’s next ISS spacewalk has an unusual objective
An astronaut during a spacewalk.

NASA Live: Official Stream of NASA TV

While most NASA spacewalks at the International Space Station (ISS) are for upgrade or maintenance work, the one taking place on Thursday, June 13, has a rather different objective -- to find out if there are any living organisms on the exterior of the orbital outpost.

Read more
Starliner astronauts give first tour of the docked spacecraft
Boeing's Starliner capsule docked at the ISS.

NASA astronauts Suni Williams and Butch Wilmore have given space fans a tour of Boeing’s Starliner capsule, which is currently docked at the International Space Station (ISS).

The pair traveled to the ISS aboard the Starliner in the spacecraft’s first crewed flight, which launched from the Kennedy Space Center in Florida atop a ULA Atlas V rocket on Wednesday. The vehicle docked with the orbital outpost the following day.

Read more
NASA sets new target launch date for Starliner spacecraft
The Starliner atop an Atlas V rocket.

The Starliner spacecraft sits atop an Atlas V rocket at the Kennedy Space Center in Florida. NASA/Joel Kowsky

After calling off the launch of Boeing Space’s Starliner spacecraft on Saturday with just minutes to go, NASA says it's now aiming to send the vehicle on its first crewed mission at 10:52 a.m. ET on Wednesday, June 5.

Read more