In 1997, the Sojourner rover became the first robot to explore the surface of which planet?
Correct answer: Mars
NoEyedDeer
thank you, big bang theory and Howard
Player #3196549
we can't even see the other three planet surfaces....
Taranchalanche
so it could be working diligently out there
Birdiemom
DistinctiveThanks6, AWOL, perhaps? Or amok?
richbaumel
Sure it's not Uranus?