Mark your calendars – NASAAstronauts will be venturing into the vacuum of space soon. ⁣ ⁣ On June 26 and July 1, watch International Space Station (ISS) Commander Chris Cassidy (Astro_Seal) and Joint Operations Commander Bob Behnken exit the orbital lab to continue upgrades on its power systems. ⁣ ⁣ Cassidy has logged 31 hours, 14 minutes of time outside the space station and is pictured here on his last spacewalk in 2013. Behnken, who recently arrived to space with Astro.Doug as a part of our May 30 #LaunchAmerica mission, has previously logged more than 37 hours during six spacewalks. ⁣ ⁣ Credit: NASA⁣ ⁣ #Spacewalk #NASA #TuneIn #Astronauts