Under the assumption that planetary dust particles can escape from the gravitational attraction of a planet, we consider the possibility of the dust grains leaving the star’s system by means of radiation pressure. By taking the typical dust parameters into account, we consider their dynamics and show that they can reach the deep space, taking part in panspermia. It has been shown that, during 5 billion years, the dust grains will reach 105 stellar systems, and by taking the Drake equation into account, it has been shown that the whole galaxy will be full of planetary dust particles. It has been found that dust grains can be trapped within HI and HII clouds of the interstellar medium, suggesting that these regions may harbor not only the building blocks of life but also complex molecules associated with life. We have also emphasized two key factors that hinder the preservation of life within interstellar clouds: (a) the interaction of dust grains with extremely hot regions, which leads to the complete ionization and destruction of complex molecules, and (b) the lack of definitive knowledge regarding the long-term survival of bacteria in the vacuum.
References
[1]
Shklovskii, I. and Sagan, C. (1966) Intelligent Life in the Universe. Random House.
[2]
Osmanov, Z. (2016) On the Search for Artificial Dyson-Like Structures around Pulsars. International Journal of Astrobiology, 15, 127-132. https://doi.org/10.1017/s1473550415000257
[3]
Dvali, G. and Osmanov, Z.N. (2023) Black Holes as Tools for Quantum Computing by Advanced Extraterrestrial Civilizations. International Journal of Astrobiology, 22, 617-640. https://doi.org/10.1017/s1473550423000186
[4]
Hsiao, T.Y., Goto, T., Hashimoto, T., Santos, D.J.D., On, A.Y.L., Kilerci-Eser, E., etal. (2021) A Dyson Sphere around a Black Hole. Monthly Notices of the Royal Astronomical Society, 506, 1723-1732. https://doi.org/10.1093/mnras/stab1832
[5]
Horneck, G. and Rettberg, P. (2007) Complete Course of Astrobiology. Wiley.
[6]
Chon-Torres, O.A., Chela-Flores, J., Dunér, D., Persson, E., Milligan, T., Martínez-Frías, J., et al. (2024) Astrobiocentrism: Reflections on Challenges in the Transition to a Vision of Life and Humanity in Space. International Journal of Astrobiology, 23, 1-17. https://doi.org/10.1017/s1473550424000016
[7]
Wickramasinghe, C. (2010) The Astrobiological Case for Our Cosmic Ancestry. International Journal of Astrobiology, 9, 119-129. https://doi.org/10.1017/s1473550409990413
[8]
Raulin-Cerceau, F., Maurel, M. and Schneider, J. (1998) From Panspermia to Bioastronomy, the Evolution of the Hypothesis of Universal Life. Origins of Life and Evolution of the Biosphere, 28, 597-612. https://doi.org/10.1023/a:1006566518046
[9]
Davies, R.E. (1988) Panspermia: Unlikely, Unsupported, but Just Possible. Acta Astronautica, 17, 129-135. https://doi.org/10.1016/0094-5765(88)90136-1
[10]
Arrhenius, S. (1908) Worlds in the Making: The Evolution of the Universe. Harper and Row.
[11]
Secker, J., Lepock, J. and Wesson, P. (1994) Damage Due to Ultraviolet and Ionizing Radiation during the Ejection of Shielded Micro-Organisms from the Vicinity of 1M? Main Sequence and Red Giant Stars. Astrophysics and Space Science, 219, 1-28. https://doi.org/10.1007/bf00657856
[12]
Wesson, P.S. (2010) Panspermia, Past and Present: Astrophysical and Biophysical Conditions for the Dissemination of Life in Space. Space Science Reviews, 156, 239-252. https://doi.org/10.1007/s11214-010-9671-x
[13]
Gobat, R., Snaith, O., et al. (2021) Panspermia in a Milky Way-Like Galaxy. The Astrophysical Journal, 921, 157. https://doi.org/10.3847/1538-4357/ac2829
[14]
Berera, A. (2017) Space Dust Collisions as a Planetary Escape Mechanism. Astrobiology, 17, 1274-1282. https://doi.org/10.1089/ast.2017.1662
[15]
Carroll, B.W. and Ostlie, D.A. (2010) An Introduction to Modern Astrophysics and Cosmology. Cambridge University Press.
[16]
Brekke, A. (2013) Physics of the Upper Polar Atmosphere. Springer.
[17]
Havens, R.J., Koll, R.T. and LaGow, H.E. (1952) The Pressure, Density, and Temperature of the Earth’s Atmosphere to 160 Kilometers. Journal of Geophysical Research, 57, 59-72. https://doi.org/10.1029/jz057i001p00059
[18]
Picone, J.M., Hedin, A.E., Drob, D.P. and Aikin, A.C. (2002) NRLMSISE-00 Empirical Model of the Atmosphere: Statistical Comparisons and Scientific Issues. Journal of Geophysical Research: Space Physics, 107, SIA 15-1-SIA 15-16. https://doi.org/10.1029/2002ja009430
[19]
Bovy, J. (2017) Stellar Inventory of the Solar Neighbourhood Using Gaia Dr1. Monthly Notices of the Royal Astronomical Society, 470, 1360-1387. https://doi.org/10.1093/mnras/stx1277
[20]
Scheffler, H. and Elsässer, H. (1988) Dynamics of the Galaxy. In: Astronomy and Astrophysics Library, Springer, 365-447. https://doi.org/10.1007/978-3-642-71721-5_6
[21]
Kyte, F.T. and Wasson, J.T. (1986) Accretion Rate of Extraterrestrial Matter: Iridium Deposited 33 to 67 Million Years Ago. Science, 232, 1225-1229. https://doi.org/10.1126/science.232.4755.1225
[22]
Love, S.G. and Brownlee, D.E. (1993) A Direct Measurement of the Terrestrial Mass Accretion Rate of Cosmic Dust. Science, 262, 550-553. https://doi.org/10.1126/science.262.5133.550
[23]
Flynn, G.J. (2002) Extraterrestrial Dust in the Near-Earth Environment. In: Murad, E. and Williams, I.P., Eds., Meteors in the Earth’s Atmosphere, Cambridge University Press, 77.
