Spacewalk in progress. Watch astronauts @astro_josh (suit with red stripes) and Frank Rubio (unmarked suit) install new @Space_Station rollout solar arrays. The spacewalk is expected to last seven hours.

@RichardTKoenig We usually plan for a seven-hour spacewalk, though they can go longer or shorter. Astronauts Susan Helms and Jim Voss hold the record for longest spacewalk at 8 hours and 56 minutes (March 10, 2001).

@NASA @astro_josh @Space_Station Other than communications with the ISS, each other, or NASA, what do the astronauts hear while they're on a spacewalk? Is it complete silence, an electrical hum of some type, the sounds of breathing, classical music...?

@NASA @astro_josh @Space_Station We live on the bleeding edge of civilization. What a time to be alive ♥️

@EllenGarnett1 That's about it! Astronauts only hear each other and team members on the ground.

@NASA @astro_josh @Space_Station Wondering if space suit technology will get to a point so that it’s more of a film than suit so it’s more efficient to work on @Space_Station - Bet @elonmusk can come up with something?