{
    "Where did the Murchison meteorite make landfall?": [
        "OR",
        {
            "Australia": [
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9",
                "5cc77ad6-8969-49e0-88fe-a6676ea76ba8",
                "2260848f-35ee-4e1a-af83-552be3589d77",
                "f6586f74-a7d3-4441-ab53-dac9527d0efd",
                "19ea586a-b142-44a1-864e-9afd800543a8",
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                "f6162a96-ba7a-405b-99d8-8b5d824c19fc",
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                "24fc377f-a4f3-4bbc-8c92-4714466397c0",
                "520b57ff-20be-4c0b-9646-11dfd847e05a",
                "3537d444-0bde-4f4f-beef-1ca7c730b748"
            ],
            "Murchison, Australia": [
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9",
                "f6586f74-a7d3-4441-ab53-dac9527d0efd",
                "75f0b9e0-8d79-49c0-9a2d-ea6393353541",
                "a76ab512-ff67-4bb8-b808-fd4442949552",
                "60b2d51d-42d5-4395-9187-5304d7167a17",
                "f6162a96-ba7a-405b-99d8-8b5d824c19fc",
                "cc1d103a-3d0a-4256-bbfa-0814159c641f",
                "818d2a73-7548-4aa6-8cfd-21cab5b8382d",
                "96db9634-a38f-4f97-a192-e552407cf238",
                "5f494aa6-b7f6-49fa-b814-28e38c181e52"
            ],
            "Muchison, Victoria state, Australia": [
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6"
            ]
        }
    ],
    "How heavy was the Murchison meteorite?": [
        "OR",
        {
            "100 kilograms": [
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9"
            ]
        }
    ],
    "The presolar grains in the Murchison meteorite were mostly composed of what?": [
        "OR",
        {
            "Silicon Carbide": []
        }
    ],
    "How old were these grains?": [
        "OR",
        {
            "Between 5 and 7 billion years old": [
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9",
                "5cc77ad6-8969-49e0-88fe-a6676ea76ba8",
                "f6586f74-a7d3-4441-ab53-dac9527d0efd",
                "75f0b9e0-8d79-49c0-9a2d-ea6393353541",
                "60b2d51d-42d5-4395-9187-5304d7167a17",
                "2260848f-35ee-4e1a-af83-552be3589d77",
                "5f494aa6-b7f6-49fa-b814-28e38c181e52"
            ],
            "Between 4.6 and 7.5 billion years old": [
                "cc1d103a-3d0a-4256-bbfa-0814159c641f",
                "24fc377f-a4f3-4bbc-8c92-4714466397c0",
                "818d2a73-7548-4aa6-8cfd-21cab5b8382d"
            ],
            "7  billion years old": [
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6",
                "818d2a73-7548-4aa6-8cfd-21cab5b8382d",
                "3537d444-0bde-4f4f-beef-1ca7c730b748"
            ],
            "7.5 billion years old": [
                "cc1d103a-3d0a-4256-bbfa-0814159c641f",
                "520b57ff-20be-4c0b-9646-11dfd847e05a"
            ],
            "7.4 billion years old": [
                "77551b50-1271-4753-b2ee-198f460f82a2"
            ],
            "Between 4.6 and 7 billion years old": [
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6"
            ]
        }
    ],
    "How does the age of the grains compare to that of our Solar System?": [
        "AND",
        {
            "They are older than the Sun": [
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9",
                "5cc77ad6-8969-49e0-88fe-a6676ea76ba8",
                "60b2d51d-42d5-4395-9187-5304d7167a17",
                "f6586f74-a7d3-4441-ab53-dac9527d0efd",
                "2260848f-35ee-4e1a-af83-552be3589d77",
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6"
            ],
            "They are older than the Earth": [
                "60b2d51d-42d5-4395-9187-5304d7167a17",
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9",
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6"
            ],
            "They are olderyhan the Solar System": [
                "77551b50-1271-4753-b2ee-198f460f82a2",
                "24fc377f-a4f3-4bbc-8c92-4714466397c0",
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6",
                "818d2a73-7548-4aa6-8cfd-21cab5b8382d",
                "3537d444-0bde-4f4f-beef-1ca7c730b748"
            ]
        }
    ],
    "What other materials do we have that are older than the Solar System?": [
        "OR",
        {
            "Nothing older than presolar grains": [
                "60b2d51d-42d5-4395-9187-5304d7167a17",
                "f98cef20-22d6-4daf-aae8-2ebb38f4a5c9"
            ],
            "Presolar  grains": [
                "cc1d103a-3d0a-4256-bbfa-0814159c641f",
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6",
                "818d2a73-7548-4aa6-8cfd-21cab5b8382d",
                "5f494aa6-b7f6-49fa-b814-28e38c181e52",
                "3537d444-0bde-4f4f-beef-1ca7c730b748"
            ],
            "Dust particles": [
                "77551b50-1271-4753-b2ee-198f460f82a2"
            ]
        }
    ],
    "What if any organic compounds were found in the Murchison meteorite?": [
        "AND",
        {
            "Amino acids": [
                "19ea586a-b142-44a1-864e-9afd800543a8",
                "f6162a96-ba7a-405b-99d8-8b5d824c19fc",
                "96db9634-a38f-4f97-a192-e552407cf238"
            ],
            "Ribose": [
                "46c8ae2a-624a-4b64-9414-48bb7fcfd0ef",
                "f6162a96-ba7a-405b-99d8-8b5d824c19fc"
            ],
            "Other sugars": [
                "46c8ae2a-624a-4b64-9414-48bb7fcfd0ef",
                "f6162a96-ba7a-405b-99d8-8b5d824c19fc"
            ],
            "Nucleobase": [],
            "Sugar compounds": [],
            "Purines and pyrimidines": [
                "96db9634-a38f-4f97-a192-e552407cf238"
            ]
        }
    ],
    "What does the discovery of sugars in the meteorite indicate about the origin of life on Earth?": [
        "OR",
        {
            "Asteroids could have supplied organic molecules": [
                "46c8ae2a-624a-4b64-9414-48bb7fcfd0ef"
            ]
        }
    ],
    "What advances could the discovery of water molecules in the Murchison meteorite lead to?": [
        "OR",
        {
            "A process for extracting water on the moon or elsewhere in space": [
                "a76ab512-ff67-4bb8-b808-fd4442949552"
            ]
        }
    ],
    "What did the scientists use pieces of the meteorite for?": [
        "OR",
        {
            "To work out algorithms for identifying extraterrestrial life": [
                "46c8ae2a-624a-4b64-9414-48bb7fcfd0ef"
            ],
            "To get to know what the universe looked like before Earth was formed": [
                "24fc377f-a4f3-4bbc-8c92-4714466397c0"
            ],
            "To know the origin of stars, carbon atoms in the human body, and even the origin of oxygen in the air": [
                "5f494aa6-b7f6-49fa-b814-28e38c181e52"
            ],
            "To get a glimpse into how galaxies form": [
                "77551b50-1271-4753-b2ee-198f460f82a2"
            ],
            " To determine the age of this stardust": [
                "818d2a73-7548-4aa6-8cfd-21cab5b8382d"
            ],
            "To study whether new stars form at a steady rate": [
                "cc1d103a-3d0a-4256-bbfa-0814159c641f",
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6"
            ],
            "To discover if the numbers of new stars vary at different times": [
                "cc1d103a-3d0a-4256-bbfa-0814159c641f"
            ],
            "To get clues about the rate of star formation in the Milky Way": [
                "e386f1f4-7219-4455-bbcc-e2be5cd2e1f6"
            ]
        }
    ]
}