From the lessons learned by the Viking landers, what do scientists believe is the best kind of robotic space mission with the best chance of detecting life on Mars?
A) lander
B) rover
C) sample return
D) orbiter

Question

Quizplus · Accepted Answer

Sample return missions are considered the best kind of robotic space mission for detecting life on Mars because they allow scientists to analyze Martian samples with the sophisticated and sensitive equipment available on Earth, which can provide more detailed and conclusive evidence of life than what can be achieved through remote or in-situ analysis by landers or rovers on Mars itself.

From the Lessons Learned by the Viking Landers, What Do