| { | |
| "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", | |
| "a76ab512-ff67-4bb8-b808-fd4442949552", | |
| "60b2d51d-42d5-4395-9187-5304d7167a17", | |
| "f6162a96-ba7a-405b-99d8-8b5d824c19fc", | |
| "77551b50-1271-4753-b2ee-198f460f82a2", | |
| "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" | |
| ] | |
| } | |
| ] | |
| } |