| No. | Bet | Duration | Stakes | Predictor | Challenger |
|---|---|---|---|---|---|
| 317. | No human will set his or her foot on Mars and return safely to earth before 2050. |
42 years 02007-02049 |
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| 343. |
15 years 02008-02023 |
Predictions that Schwieder has challenged which have not (yet?) been accepted by the Predictor.
| No. | Bet | Duration | Stakes | Predictor | Challenger |
|---|---|---|---|---|---|
No Challenges submitted. |
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