RT @ChrisAstro: Watch “[H-II] Launch of Japanese HTV-4 Cargo Spacecraft on H-IIB Rocket” on YouTube – https://t.co/Q6B9zHZt6O
RT @ChrisAstro: Watch “[H-II] Launch of Japanese HTV-4 Cargo Spacecraft on H-IIB Rocket” on YouTube – https://t.co/Q6B9zHZt6O