sunlight takes about 8.4 minutes to travel from the sun to earth. when nasa's new horizons spacecraft passed pluto in 2015, it was about 32 au from earth. about how long did it take for transmitted images of pluto to travel from the spacecraft to earth? sunlight takes about 8.4 minutes to travel from the sun to earth. when nasa's new horizons spacecraft passed pluto in 2015, it was about 32 au from earth. about how long did it take for transmitted images of pluto to travel from the spacecraft to earth? one plutonian year they arrived almost instantaneously. 3 weeks 4-1/2 hours 2-1/4 days
