{
    "planets": [
        {
            "name": "Earth",
            "mass": 7.342e24,
            "position": [0, 0, 0],
            "velocity": [0, -1022, 0]
        },
        {
            "name": "Moon",
            "mass": 7.34767309e24,
            "position": [384400000, 0, 0],
            "velocity": [0, 1022, 0]
        }
    ]
}