Which rover launched second in the summer of 2003?
Answer
Opportunity (MER-B)
Spirit departed Earth on June 10, 2003, and Opportunity followed later on July 7, 2003.
Related Questions
What was the intended nominal mission duration for each Martian explorer?Which rover landed in Gusev Crater?What feature did Opportunity confirm in Meridiani Planum as strong evidence for past liquid water?When was the last communication successfully received from the Spirit rover?Which of the two rovers traveled a significantly greater distance?What was the primary objective for the Spirit and Opportunity missions?Which rover launched second in the summer of 2003?By what approximate factor did Opportunity exceed its planned 90-sol operational life?What instrument did both rovers carry to determine mineral composition from a distance?What was the finding associated with Spirit near Columbia Hills?What planet-encircling event ultimately caused the loss of the Opportunity rover?How long did Spirit operate before its last communication in 2010?