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Proceedings of the National Academy of Sciences of the United States of America is a peer-reviewed multidisciplinary scientific journal. It is the official journal of the National Academy of Sciences, published since 1915, and publishes original research, scientific reviews, commentaries, and letters. According to Journal Citation Reports, the journal has a 2021 impact factor of 12.779. PNAS is the second most cited scientific journal, with more than 1.9 million cumulative citations from 2008 to 2018. In the mass media, PNAS has been described variously as "prestigious", "sedate", "renowned" and "high impact".
Nalin Chandra Wickramasinghe is a Sri Lankan-born British mathematician, astronomer and astrobiologist of Sinhalese ethnicity. His research interests include the interstellar medium, infrared astronomy, light scattering theory, applications of solid-state physics to astronomy, the early Solar System, comets, astrochemistry, the origin of life and astrobiology. A student and collaborator of Fred Hoyle, the pair worked jointly for over 40 years as influential proponents of panspermia. In 1974 they proposed the hypothesis that some dust in interstellar space was largely organic, later proven to be correct.
Usselo ['ʏsəloː] is a Dutch village in the municipality of Enschede in the eastern Netherlands region of Twente. It is located just west of Enschede and east of Boekelo. It has existed for over 800 years. Archaeology shows that the region was inhabited more or less continuously since the last ice-age. The region is very fertile and will support agriculture and cattle. The countryside is marked by artificial hills, called es or esch, which were formed by depositing dung mixed with dirt. A prime example is the Fleringer Esch, near Fleringen.
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The Tanpopo mission is an orbital astrobiology experiment investigating the potential interplanetary transfer of life, organic compounds, and possible terrestrial particles in the low Earth orbit. The purpose is to assess the panspermia hypothesis and the possibility of natural interplanetary transport of microbial life as well as prebiotic organic compounds.
Magicians of the Gods: The Forgotten Wisdom of Earth's Lost Civilisation is a 2015 book by British pseudoarchaeology writer Graham Hancock, published by Thomas Dunne Books in the United States and by Coronet in the United Kingdom. Macmillan Publishers released an "updated and expanded" paperback edition in 2017.
Although diamonds on Earth are rare, extraterrestrial diamonds are very common. Diamonds small enough that they contain only about 2000 carbon atoms are abundant in meteorites and some of them formed in stars before the Solar System existed. High pressure experiments suggest large amounts of diamonds are formed from methane on the ice giant planets Uranus and Neptune, while some planets in other planetary systems may be almost pure diamond. Diamonds are also found in stars and may have been the first mineral ever to have formed.
References
- ↑ "Cardiff Center for Astrobiology, Staff". cardiffcentreforastrobiology.com. Cardiff Center for Astrobiology. Retrieved 5 November 2014.
- ↑ "Professor William M. Napier". www.buckingham.ac.uk. University of Buckingham. Archived from the original on 5 November 2014. Retrieved 5 November 2014.
- ↑ Asher, D. J., S. V. M. Clube, W. M. Napier and D. I. Steel (1994). Coherent Catastrophism. Vistas in Astronomy, 38 (1), 1-27; Abstract at Harvard.edu
- ↑ "Was a giant comet responsible for a North American catastrophe in 11,000 BC?". Science Daily. 1 April 2010. Retrieved 5 November 2014.
- ↑ Holliday, Vance T.; Daulton, Tyrone L.; Bartlein, Patrick J.; Boslough, Mark B.; Breslawski, Ryan P.; Fisher, Abigail E.; Jorgeson, Ian A.; Scott, Andrew C.; Koeberl, Christian; Marlon, Jennifer; Severinghaus, Jeffrey; Petaev, Michail I.; Claeys, Philippe (26 July 2023). "Comprehensive refutation of the Younger Dryas Impact Hypothesis (YDIH)". Earth-Science Reviews: 104502. doi: 10.1016/j.earscirev.2023.104502 . S2CID 260218223.
- ↑ "Scientists & Members". Comet Research Group. 10 September 2016. Retrieved 21 October 2022.
- ↑ Boslough, Mark (2022). "Sodom Meteor Strike Claims Should Be Taken with a Pillar of Salt" (PDF). Skeptical Inquirer. 46 (1): 10–14.
- ↑ Nuttall, Nick (24 May 1990). "A cosmic trail with destruction in its wake". Times of London. Retrieved 5 November 2014.
