Answer:
After the Mars Exploration Rover mission.
Explanation:
The Mars Exploration Rover mission began in 1994 while Pluto was downgraded to a dwarf planet in 2006.
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D
Evidence: "The ornithologists have been here," it's saying how the ornithologists were last seen there, which supports D being the correct answer.
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Answer:
Dorothy Vaughan was an American computer programmer and mathematician who made significant contributions to the early U.S. space program. She was also the first Black American supervisor at NASA, a role she would continue to hold up to and beyond its merger with NASA.
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