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48
20
forecasters
6
48 comments
20 forecasters
Economy & Business
2 more...
When will there be a round trip crewed mission to Neptune's orbit?
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Current estimate
2126
2126
(2078 - >2200)
Forecast Timeline
1d
1w
2m
all
Forecast Timeline
1d
1w
2m
all
Notify me when this resolves
Comments (48)
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