Space Exploration Quiz >> Astronomy: Exploring Time and Space
TOTAL POINTS 5
1.All space launches up to this point have relied on rockets using this kind of of energy:
1 point
2.Which of these is a role of NASA?
1 point
3.True or False: Commercial spaceflight companies have found savings by developing launch systems that are almost entirely reusable.
1 point
4.True or False: Chemical fuel energy is used to power rockets because it is the most efficient energy source imaginable.
1 point
5. Human astronauts have landed on which of the following solar system bodies:
1 point
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