UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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According to the background paragraph, why is Adam Steltzer considered an expert on the topic of this article?
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this person is a NASA engineer
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this person is a science and astronomy writer
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this person is a former astronaut
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this person is the first astronaut to walk on the Earth’s moon
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Explanation:
Detailed explanation-1: -Wayne Lee, chief engineer for development of the Mars Exploration Rover’s descent and landing systems proudly waves a broom, indicating a clean martian sweep.
Detailed explanation-2: -A former bass player in a rock-and-roll band who likes to go to work in snakeskin cowboy boots, Adam Steltzner led the team that invented the revolutionary Sky Crane, which enabled the Curiosity rover to set down on Mars as gently as a duck landing on a pond.
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