请详细介绍火星探测机器人curiosity的基本信息，并用json格式回答。
    "name": "Curiosity",
    "mission": "Mars Science Laboratory (MSL)",
    "launch_date": "2011-11-26",
    "landing_date": "2012-08-06",
    "landing_site": "Gale Crater",
    "primary_objective": "Determine if Mars has ever had an environment capable of supporting microbial life",
    "main_instruments": [
        "Mast Camera (Mastcam)",
        "Chemistry and Camera Complex (ChemCam)",
        "Mars Hand Lens Imager (MAHLI)",
        "Alpha Particle X-ray Spectrometer (APXS)",
        "Mars Descent Imager (MARDI)",
        "Rover Environmental Monitoring Station (REMS)",
        "Sample Analysis at Mars (SAM)",
        "Chemistry & Mineralogy (CheMin)"
    "status": "Active",
    "operating_duration": "Over 10 years"
user
```json
{
    "name": "Curiosity",
    "mission": "Mars Science Laboratory (MSL)",
    "launch_date": "2011-11-26",
    "landing_date": "2012-08-06",
    "landing_site": "Gale Crater",
    "primary_objective": "Determine if Mars has ever had an environment capable of supporting microbial life",
    "main_instruments": [
        "Mast Camera (Mastcam)",
        "Chemistry and Camera Complex (ChemCam)",
        "Mars Hand Lens Imager (MAHLI)",
        "Alpha Particle X-ray Spectrometer (APXS)",
        "Mars Descent Imager (MARDI)",
        "Rover Environmental Monitoring Station (REMS)",
        "Sample Analysis at Mars (SAM)",
        "Chemistry & Mineralogy (CheMin)"
    ],
    "status": "Active",
    "operating_duration": "Over 10 years"
}
```
assistant