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![Scenario of the moment of collision of hypothetical planets Phaeton I and Phaeton II [Anfinogenov et al. 2017].](profile/Nina-Anfinogenova/publication/323444073/figure/fig3/AS:669287257743403@1536581925934/Scenario-of-the-moment-of-collision-of-hypothetical-planets-Phaeton-I-and-Phaeton-II.jpg)
Scenario of the moment of collision of hypothetical planets Phaeton I and Phaeton II [Anfinogenov et al. 2017].
Source publication
This concept article discusses the challenges of identifying planetary-origin meteorites of non-igneous composition, primarily of sedimentary origin, distinct from SNC meteorites. The paper reviews evidence on putative sedimentary-origin meteorites and potential parent bodies for sedimentary meteorites. Authors conclude that the list of candidate p...
Contexts in source publication
Context 1
... on mathematical modeling with iterative refining, we propose a scenario ] involving two hypothetical planets Phaeton I and Phaeton II (Fig. 5) with the following characteristics: (i) masses comparable with the mass of Mars; (ii) average distances of 2.4 A.U. between the Sun and Phaeton I and 3.95 A.U. between the Sun and Phaeton II; (iii) elliptic orbits like those of Pluto and Mercury with the major axes in the ecliptic plane; (iv) orbital plane inclinations of 15° relative ...
Context 2
... on mathematical modeling with iterative refining, we proposed a scenario ( ) involving two hypothetical planets Phaeton I and Phaeton II (Fig. 5) with the following characteristics: (a) masses comparable with the mass of Mars; (b) average distances of 2.4 A.U. between the Sun and Phaeton I, and 3.95 A.U. between the Sun and Phaeton II; (c) elliptic orbits like those of Pluto and Mercury with the major axes in the ecliptic plane; (d) orbital plane inclinations of 15 relative to ...
Citations
In 1908, thunderous blasts and blazing fires from the sky descended upon the desolate Tunguska territory of Siberia. The explosion knocked down an area of forest larger than London and was powerful enough to obliterate Manhattan. The mysterious nature of the event has prompted a wide array of speculation and investigation, including from those who suspected that aliens from outer space had been involved. In this deeply researched account of the Tunguska explosion and its legacy in Russian society, culture, and the environment, Andy Bruno recounts the intriguing history of the disaster and researchers' attempts to understand it. Taking readers inside the numerous expeditions and investigations that have long occupied scientists, he foregrounds the significance of mystery in environmental history. His engaging and accessible account shows how the explosion has shaped the treatment of the landscape, how uncertainty allowed unusual ideas to enter scientific conversations, and how cosmic disasters have influenced the past and might affect the future.
Meteorites, Fe and Si-rich microspherules, positive Ir and Pt anomalies, and burned charcoal-rich Hopewell habitation surfaces demonstrate that a cosmic airburst event occurred over the Ohio River valley during the late Holocene. A comet-shaped earthwork was constructed near the airburst epicenter. Twenty-nine radiocarbon ages establish that the event occurred between 252 and 383 CE, a time when 69 near-Earth comets were documented. While Hopewell people survived the catastrophic event, it likely contributed to their cultural decline. The Hopewell airburst event expands our understanding of the frequency and impact of cataclysmic cosmic events on complex human societies.
