| The prototype Mini-Corer for FIDO is used to collect intact rock and soil samples that are 5 mm in diameter and 1.5 cm long by drilling into boulders and bedrock and depositing the samples in the Sample Container. The Mini-Corer is located on the rover and is independent of the arm. |  |
| The Athena Payload website contains more information about the Mini-Corer flight model. | |