Analyse @NASA's tweets
All four #Crew3 astronauts have boarded their @SpaceX Dragon spacecraft and are on the #CountdownToLaunch.
From left to right: @Astro_Matthias, @AstroMarshburn, @Astro_Raja and Kayla Barron: https://t.co/RjK27K75Na
From left to right: @Astro_Matthias, @AstroMarshburn, @Astro_Raja and Kayla Barron: https://t.co/RjK27K75Na