搜尋星際嘧啶：收割的季節

Physics & Astronomy

1. pyrimidines 100%
2. exobiology 19%
3. extraterrestrial environments 11%
4. organic chemistry 9%
5. molecules 9%
6. Halley's comet 9%
7. uracil 8%
8. thymine 8%
9. spectral mixture analysis 8%
10. rings 8%
11. biochemistry 7%
12. nucleic acids 7%
13. meteorites 7%
14. surface reactions 6%
15. isomers 5%
16. deoxyribonucleic acid 5%