ArticleProceedings of the National Academy of Sciences of the United States of America2017
Enhanced interplanetary panspermia in the TRAPPIST-1 system.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Rethinking planetary protection: an island biogeographical analysis.Journal of the Royal Society, Interface · 2025Article
- Extremophiles in Space Exploration.Indian journal of microbiology · 2024Review
- Post-dispersal astrobiological events: modelling macroevolutionary dynamics for lithopanspermia.Extremophiles : life under extreme conditions · 2023Article
- Article
- The Habitability of the Galactic Bulge.Life (Basel, Switzerland) · 2020Article
- On A Hypothetical Mechanism of Interstellar Life Transfer Trough Nomadic Objects.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2020Article
- Tolerance of the freeze-dried mouse sperm nucleus to temperatures ranging from -196 °C to 150 °C.Scientific reports · 2019Article
- Energy Dissipation in the Upper Atmospheres of Trappist-1 Planets.The astrophysical journal. Letters · 2018Article
- Atmospheric escape from the TRAPPIST-1 planets and implications for habitability.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
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Authors and funding
2 authors.
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Abstract
We present a simple model for estimating the probability of interplanetary panspermia in the recently discovered system of seven planets orbiting the ultracool dwarf star TRAPPIST-1 and find that panspermia is potentially orders of magnitude more likely to occur in the TRAPPIST-1 system compared with the Earth-to-Mars case. As a consequence, we argue that the probability of abiogenesis is enhanced on the TRAPPIST-1 planets compared with the solar system. By adopting models from theoretical ecology, we show that the number of species transferred and the number of life-bearing planets are also likely to be higher because of the increased rates of immigration. We propose observational metrics for evaluating whether life was initiated by panspermia on multiple planets in the TRAPPIST-1 system. These results are also applicable to habitable exoplanets and exomoons in other planetary systems.
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