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| Microbe-I | Microbe-II | Microbe-III | |
|---|---|---|---|
| Sampling date (cumulative duration of Kibo operation)a | 5 September 2009 (459 days) | 27 February 2011 (999 days) | 16 October 2012 (1,596 days) |
| Return to the Earth (mission) | 12 September 2009 (STS-128) | 9 March 2011 (STS-133) | 28 October 2012 (SpaceX CRS-1) |
| Sample arrival (days after sampling) | 25 September 2009 (20 days) | 20 March 2011 (22 days) | 6 November 2012 (21 days) |
Kibo operation was started on 4 June 2008.
