Question #3
What happened to Mariner 3?
Question #4
How long did it take Mariner 4 to reach Mars?
Question #5
NASA writes that "Mariner 3 and 4 were identical spacecraft designed to carry out the first flybys of Mars"
What does "identical" mean in this context?
Question #6
NASA writes "The pictures, played back from a small tape recorder over a long period, showed lunar–type impact craters…."
What does "period" mean in this context?
Question #7
In the same sentence below, what is another word that means the same as "impact"?
"The pictures, played back from a small tape recorder over a long period, showed lunar–type impact craters…."?
Question #8
The article says that "…continuing long–term studies of the solar wind environment and making coordinated measurements with Mariner 5…."
What does "coordinated measurements" mean in this context?
Question #9
How many years ago did we first photograph Mars?
Question #10
Is there anything you do not understand about this reading?
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