take off
launch
land
countdown
t0="la lumière"; t1="l'étoile filante"; t2="l'éclipse"; t3="le système solaire"; t4="la galaxie"; t5="l'orbite"; t6="le trou noir"; t7="le rayonnement"; t8="les rayons gamma"; t9="les rayons X m"; t0="light"; t1="shooting star"; t2="eclipse"; t3="solar system"; t4="galaxy"; t5="orbit"; t6="black hole"; t7="radiation"; t8="gamma rays"; t9="X-rays";