Europe is looking inward, and perhaps to China, as the White House tries to cancel some NASA partnerships.
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After 8 years, Europe's BepiColombo mission is on final approach to Mercury
"Fundamentally, we want to learn about the origins of this planet and how it came to be like it is."
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Without new landers or rovers, it's helicopters or bust for NASA's Mars program
NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.
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A martian rock has lots of carbon on it, and it's not clear why
Biology could explain the find, but there are other potential explanations.
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