Table of Links

Abstract and 1. Introduction

2. Methods

2.1. Modeling Panspermia and Terraformation

2.2. Identifying the Presence of Terraformed Planets and 2.3. Software and Availability

3. Results

3.1. Panspermia can increase the correlation between planets’ compositions and positions

3.2. Likely terraformed planets can be identified from clustering

4. Summary and Discussion

5. Acknowledgements and References

APPENDIX

A. Appendix

5. ACKNOWLEDGEMENTS

The authors would like to thank Estelle Janin and Cole Mathis for encouraging and productive conversations, and for feedback on the manuscript.

REFERENCES

Affholder, A., Guyot, F., Sauterey, B., Ferri`ere, R., & Mazevet, S. 2021, Nature Astronomy, doi: 10.1038/s41550-021-01372-6

Balbi, A., & Grimaldi, C. 2020, Proceedings of the National Academy of Sciences, 117, 21031, doi: 10.1073/pnas.2007560117

Bartlett, S., Li, J., Gu, L., et al. 2022, Nature Astronomy, 6, 387, doi: 10.1038/s41550-021-01559-x

Benner, S. A. 2010, Astrobiology, 10, 1021, doi: 10.1089/ast.2010.0524

Bich, L., & Green, S. 2018, Synthese, 195, 3919, doi: 10.1007/s11229-017-1397-9

Bixel, A., & Apai, D. 2021, The Astronomical Journal, 161, 228, doi: 10.3847/1538-3881/abe042

Carroll-Nellenback, J., Frank, A., Wright, J., & Scharf, C. 2019, The Astronomical Journal, 158, 117, doi: 10.3847/1538-3881/ab31a3

Catling, D. C., Krissansen-Totton, J., Kiang, N. Y., et al. 2018, Astrobiology, 18, 709, doi: 10.1089/ast.2017.1737

Checlair, J. H., Villanueva, G. L., Hayworth, B. P. C., et al. 2021, The Astronomical Journal, 161, 150, doi: 10.3847/1538-3881/abdb36

Cleaves, H. J., Hystad, G., Prabhu, A., et al. 2023, Proceedings of the National Academy of Sciences, 120, e2307149120, doi: 10.1073/pnas.2307149120

Cleland, C. E. 2012, Synthese, 185, 125, doi: 10.1007/s11229-011-9879-7

Cleland, C. E., & Chyba, C. F. 2002, Origins of Life and Evolution of the Biosphere, 32, 387, doi: 10.1023/A:1020503324273

Cockell, C. S. 2022, in New Frontiers in Astrobiology (Elsevier), 1–17, doi: 10.1016/B978-0-12-824162-2.00009-9

Gobat, R. 2021, The Astrophysical Journal, 16

Green, J., Hoehler, T., Neveu, M., et al. 2021, Nature, 598, 575, doi: 10.1038/s41586-021-03804-9

Grimaldi, C., Lingam, M., & Balbi, A. 2021, The Astronomical Journal, 162, 23, doi: 10.3847/1538-3881/abfe61

Hahsler, M., Piekenbrock, M., & Doran, D. 2019, Journal of Statistical Software, 91, 1, doi: 10.18637/jss.v091.i01

Harman, C. E., & Domagal-Goldman, S. 2018, in Handbook of Exoplanets, ed. H. J. Deeg & J. A. Belmonte (Cham: Springer International Publishing), 1–22, doi: 10.1007/978-3-319-30648-3 71-1

Janin, E. 2021, Astronomy & Geophysics, 62

Kim, H., Smith, H. B., Mathis, C., Raymond, J., & Walker, S. I. 2019, Science Advances, 5, eaau0149, doi: 10.1126/sciadv.aau0149

Kinney, D., & Kempes, C. 2022, Biology & Philosophy, 37, 22, doi: 10.1007/s10539-022-09859-w

Kovacevic, A. B. 2022, arXiv:2202.07347 [astro-ph, q-bio]. http://arxiv.org/abs/2202.07347

Lenardic, A., Seales, J., & Covington, A. 2022, International Journal of Astrobiology, 1, doi: 10.1017/S1473550422000222

Lenardic, A., Seales, J., Moore, W. B., & Jellinek, A. M. 2023, Nature Astronomy, 1, doi: 10.1038/s41550-023-02031-8

Lin, H. W., & Loeb, A. 2015, The Astrophysical Journal, 810, L3, doi: 10.1088/2041-8205/810/1/L3

Lingam, M., Grimaldi, C., & Balbi, A. 2021, Monthly Notices of the Royal Astronomical Society, 509, 4365, doi: 10.1093/mnras/stab3108

Lynas, M., Houlton, B. Z., & Perry, S. 2021, Environmental Research Letters, 16, 114005, doi: 10.1088/1748-9326/ac2966

Mariscal, C., & Doolittle, W. F. 2020, Synthese, 197, 2975, doi: 10.1007/s11229-018-1852-2

Marshall, S. M., Mathis, C., Carrick, E., et al. 2021, Nature Communications, 12, 3033, doi: 10.1038/s41467-021-23258-x

Mix, L. J. 2015, Astrobiology, 15, 15, doi: 10.1089/ast.2014.1191

Moore, W. B., Lenardic, A., Jellinek, A. M., et al. 2017, Nature Astronomy, 1, 1, doi: 10.1038/s41550-017-0043

Olejarz, J., Iwasa, Y., Knoll, A. H., & Nowak, M. A. 2021, Nature Communications, 12, 3985, doi: 10.1038/s41467-021-23286-7

Pacetti, E., Turrini, D., Schisano, E., et al. 2022, The Astrophysical Journal, 937, 36, doi: 10.3847/1538-4357/ac8b11

Rideout, J. R., Caporaso, G., Bolyen, E., et al. 2023, biocore/scikit-bio: scikit-bio 0.5.9: Maintenance release, Zenodo, doi: 10.5281/zenodo.8209901

Satopaa, V., Albrecht, J., Irwin, D., & Raghavan, B. 2011, in 2011 31st International Conference on Distributed Computing Systems Workshops (Minneapolis, MN, USA: IEEE), 166–171, doi: 10.1109/ICDCSW.2011.20

Schwieterman, E. W., Meadows, V. S., Domagal-Goldman, S. D., et al. 2016, The Astrophysical Journal, 819, L13, doi: 10.3847/2041-8205/819/1/L13

Schwieterman, E. W., Kiang, N. Y., Parenteau, M. N., et al. 2018, Astrobiology, 18, 663, doi: 10.1089/ast.2017.1729

Smith, H. B., & Mathis, C. 2023, BioEssays, 2300050, doi: 10.1002/bies.202300050

Smith, H. H., Hyde, A. S., Simkus, D. N., et al. 2021, Life, 11, 498, doi: 10.3390/life11060498

Sol´e, R. V., & Munteanu, A. 2004, Europhysics Letters (EPL), 68, 170, doi: 10.1209/epl/i2004-10241-3

Tasker, E., Tan, J., Heng, K., et al. 2017, Nature Astronomy, 1, 0042, doi: 10.1038/s41550-017-0042

Tasker, E., Unterborn, C., Laneuville, M., et al., eds. 2020, Planetary diversity: rocky planet processes and their observational signatures, AAS-IOP astronomy (Bristol, UK: IOP Publishing)

The scikit-bio development team. 2020, scikit-bio: A bioinformatics library for data scientists, students, and developers. http://scikit-bio.org

Totani, T. 2023, International Journal of Astrobiology, 22, 347, doi: 10.1017/S147355042300006X

Vickers, P., Cowie, C., Dick, S. J., et al. 2023, Astrobiology, ast.2022.0084, doi: 10.1089/ast.2022.0084

Walker, S. I., Bains, W., Cronin, L., et al. 2018, Astrobiology, 18, 779, doi: 10.1089/ast.2017.1738

Wong, M. L., Prabhu, A., Williams, J., Morrison, S. M., & Hazen, R. M. 2023, Journal of Geophysical Research: Planets, 128, e2022JE007658, doi: 10.1029/2022JE007658

Wright, J. T., Mullan, B., Sigurdsson, S., & Povich, M. S. 2014, The Astrophysical Journal, 792, 26, doi: 10.1088/0004-637X/792/1/26

This paper is available on arxiv under CC BY-NC-ND 4.0 Deed license.