Re-homogenizing the Earth-Moon system
Moon was produced by a head-on collision between Earth and a forming planet UCLA-led research reconstructs massive crash, which took place 4.5 billion years ago
by Stuart Wolpert, UCAL Newsroom, January 28, 2016
http://newsroom.ucla.edu/releases/moon-was-produced-by-a-head-on-collision-between-earth-and-a-forming-planet
Are we getting closer to understanding where the Moon actually came from? Los Angeles times
http://www.latimes.com/science/sciencenow/la-sci-sn-moon-formation-20160129-story.html
Young1, E. D., I. E. Kohl, P. H. Warren, D. C. Rubie, S. A. Jacobson, and A. Morbidelli, 2016, Oxygen isotopic evidence for vigorous mixing during the Moon-forming giant impact. Science. vol. 351, no. 6272, pp. 493-496.
http://science.sciencemag.org/content/351/6272/493
It seems like this event would have scattered bits and pieces of Theia and pre-impact Earth into space where
they would drift about in space and eventually come back as meteorites.
Yours,
Paul H.
Including Original "Paul H. Letters" Copyright © 1996-2024 Paul V. Heinrich / website © 1996-2024 Dirk Ross - All rights reserved.
Sunday, 31 January 2016
Wednesday, 27 January 2016
The Aliens are Silent Because They are Dead
The Aliens are Silent Because They are Dead
The aliens are silent because they're dead
Life on other planets would probably go
extinct soon after its origin, due to runaway
heating or cooling on their fledgling planets.
Australian National University, January 21, 2016
http://www.anu.edu.au/news/all-news/the-aliens-are-silent-because-they-are-extinct
http://www.sciencedaily.com/releases/2016/01/160121110932.htm
http://www.eurekalert.org/pub_releases/2016-01/anu-taa012116.php
Aditya, C., and C. H. Lineweaver, 2016, The
Case for a Gaian Bottleneck: The Biology of
Habitability. Astrobiology. 16(1): 7-22.
Abstract at http://online.liebertpub.com/doi/abs/10.1089/ast.2015.1387
PDF file at http://goo.gl/Kj4Itc and https://goo.gl/OBP4Rn
https://web.archive.org/save/http://adi.life/pubs/ChopraLineweaver2016.pdf
Charles H Lineweaver Publications -
http://www.mso.anu.edu.au/~charley/publications.html
or https://goo.gl/W30KtK
Yours,
Paul H.
The aliens are silent because they're dead
Life on other planets would probably go
extinct soon after its origin, due to runaway
heating or cooling on their fledgling planets.
Australian National University, January 21, 2016
http://www.anu.edu.au/news/all-news/the-aliens-are-silent-because-they-are-extinct
http://www.sciencedaily.com/releases/2016/01/160121110932.htm
http://www.eurekalert.org/pub_releases/2016-01/anu-taa012116.php
Aditya, C., and C. H. Lineweaver, 2016, The
Case for a Gaian Bottleneck: The Biology of
Habitability. Astrobiology. 16(1): 7-22.
Abstract at http://online.liebertpub.com/doi/abs/10.1089/ast.2015.1387
PDF file at http://goo.gl/Kj4Itc and https://goo.gl/OBP4Rn
https://web.archive.org/save/http://adi.life/pubs/ChopraLineweaver2016.pdf
Charles H Lineweaver Publications -
http://www.mso.anu.edu.au/~charley/publications.html
or https://goo.gl/W30KtK
Yours,
Paul H.
Sunday, 24 January 2016
Earth’s Oldest Water May Have Come from Ancient H2O-Filled Dust
Earth’s Oldest Water May Have Come from Ancient H2O-Filled Dust
Earth’s Oldest Water May Have Come from Ancient H2O-Filled Dust
by Mindy Weisberger, Live Science, November 12, 2015
http://www.livescience.com/52778-earth-water-origins-ancient-dust.html
Baffin Island provides insights into origin of Earth's water, Space Daily
http://www.spacedaily.com/reports/Baffin_Island_provides_insights_into_origin_of_Earths_water_999.html
Primeval Water in the Earth by G. Jeffrey Taylor< November 30, 2015
Hawai'i Institute of Geophysics and Planetology
http://www.psrd.hawaii.edu/Nov15/PSRD-Earth-primeval-water.pdf
Hallis, L. J., G. R. Huss, K. Nagashima, G. J. Taylor, S. A. Halldórsson,
D. R. Hilton, M. J. Mottl, and K. J. Meech, 2015, Evidence for
primordial water in Earth’s deep mantle. vol. 350, no. 6262, pp. 795-797
Paper at http://science.sciencemag.org/content/350/6262/795
Reprint at
http://www.ifa.hawaii.edu/publications/preprints/15preprints/Hallis_15-188.pdf
Yours,
Paul H.
Earth’s Oldest Water May Have Come from Ancient H2O-Filled Dust
by Mindy Weisberger, Live Science, November 12, 2015
http://www.livescience.com/52778-earth-water-origins-ancient-dust.html
Baffin Island provides insights into origin of Earth's water, Space Daily
http://www.spacedaily.com/reports/Baffin_Island_provides_insights_into_origin_of_Earths_water_999.html
Primeval Water in the Earth by G. Jeffrey Taylor< November 30, 2015
Hawai'i Institute of Geophysics and Planetology
http://www.psrd.hawaii.edu/Nov15/PSRD-Earth-primeval-water.pdf
Hallis, L. J., G. R. Huss, K. Nagashima, G. J. Taylor, S. A. Halldórsson,
D. R. Hilton, M. J. Mottl, and K. J. Meech, 2015, Evidence for
primordial water in Earth’s deep mantle. vol. 350, no. 6262, pp. 795-797
Paper at http://science.sciencemag.org/content/350/6262/795
Reprint at
http://www.ifa.hawaii.edu/publications/preprints/15preprints/Hallis_15-188.pdf
Yours,
Paul H.
The Biggest Dinosaur In History? Or Not? Amphicoelias fragillimus Revisited
The Biggest Dinosaur In History? Or Not? Amphicoelias fragillimus Revisited
The Biggest Dinosaur In History May Never Have Existed
By David Goldenberg, ExtremesFiveThirtyEight, January 11, 2016
http://fivethirtyeight.com/features/the-biggest-dinosaur-in-history-may-never-have-existed/
Amphicoelias - https://en.wikipedia.org/wiki/Amphicoelias
Yours,
Paul H.
The Biggest Dinosaur In History May Never Have Existed
By David Goldenberg, ExtremesFiveThirtyEight, January 11, 2016
http://fivethirtyeight.com/features/the-biggest-dinosaur-in-history-may-never-have-existed/
Amphicoelias - https://en.wikipedia.org/wiki/Amphicoelias
Yours,
Paul H.
Saturday, 23 January 2016
The Meteorite and the Hidden Hoax
The Meteorite and the Hidden Hoax
The Meteorite and the Hidden Hoax
Science Series
BBC Radio 4
20 January 2016
http://www.bbc.co.uk/programmes/b06wg805
or audio at:
http://open.live.bbc.co.uk/mediaselector/5/redir/version/2.0/mediaset/audio-nondrm-download/proto/http/vpid/p03fcypq.mp3
Yours,
Paul H.
The Meteorite and the Hidden Hoax
Science Series
BBC Radio 4
20 January 2016
http://www.bbc.co.uk/programmes/b06wg805
or audio at:
http://open.live.bbc.co.uk/mediaselector/5/redir/version/2.0/mediaset/audio-nondrm-download/proto/http/vpid/p03fcypq.mp3
Yours,
Paul H.
Life's Rocky Start
Life's Rocky Start
Life's Rocky Start
53:07Aired: 01/13/16 Rating: TV-G
What is the secret link between rocks and minerals, and every living thing on Earth?
http://www.pbs.org/video/2365642819/
Yours,
Paul H.
Life's Rocky Start
53:07Aired: 01/13/16 Rating: TV-G
What is the secret link between rocks and minerals, and every living thing on Earth?
http://www.pbs.org/video/2365642819/
Yours,
Paul H.
Friday, 22 January 2016
New Diamond-bearing Tourmaline Species Uncovered
New Diamond-bearing Tourmaline Species Uncovered
LSU Petrologist Uncovers New Diamond-bearing Tourmaline Species
http://www.lsu.edu/science/news_events/cos-news-events/news-events-2015/DarrellHenry_Maruyamaite.php
Lussier, A., N. A. Ball, F. C. Hawthorne, D. J. Henry, R. Shimizu,
Y. Ogasawara, and T. Ota, ip, Maruyamaite,
K(MgAl2)(Al5Mg)Si6O18(BO3)3(OH)3O, a potassium-dominant
tourmaline from the ultrahigh-pressure Kokchetav massif,
northern Kazakhstan: Description and crystal structure.
American Mineralogist, preprint.
http://www.minsocam.org/msa/ammin/AM_Preprints/5359HawthornePreprintFeb.pdf
Maruyamaite - http://www.mindat.org/min-46075.html
Lussier, A., Ball, N.A., Hawthorne, F.C., Henry, D.J., Shimizu,
R., Ogasawara, Y. and Ota, T. (2014) Maruyamaite, IMA
2013- 123. CNMNC Newsletter No. 20, June 2014, page 550;
Mineralogical Magazine, 78, 549-558.
http://nrmima.nrm.se/CNMNC%20NEWSLETTER%2020.pdf
Yours,
Paul H.
LSU Petrologist Uncovers New Diamond-bearing Tourmaline Species
http://www.lsu.edu/science/news_events/cos-news-events/news-events-2015/DarrellHenry_Maruyamaite.php
Lussier, A., N. A. Ball, F. C. Hawthorne, D. J. Henry, R. Shimizu,
Y. Ogasawara, and T. Ota, ip, Maruyamaite,
K(MgAl2)(Al5Mg)Si6O18(BO3)3(OH)3O, a potassium-dominant
tourmaline from the ultrahigh-pressure Kokchetav massif,
northern Kazakhstan: Description and crystal structure.
American Mineralogist, preprint.
http://www.minsocam.org/msa/ammin/AM_Preprints/5359HawthornePreprintFeb.pdf
Maruyamaite - http://www.mindat.org/min-46075.html
Lussier, A., Ball, N.A., Hawthorne, F.C., Henry, D.J., Shimizu,
R., Ogasawara, Y. and Ota, T. (2014) Maruyamaite, IMA
2013- 123. CNMNC Newsletter No. 20, June 2014, page 550;
Mineralogical Magazine, 78, 549-558.
http://nrmima.nrm.se/CNMNC%20NEWSLETTER%2020.pdf
Yours,
Paul H.
Wednesday, 20 January 2016
Star’s Bizarre Optical Antics at Least a Century Old
Star’s Bizarre Optical Antics at Least a Century Old
Star’s bizarre optical antics go back at least a century.
Alien civilization still on the table as data comes out
of the archives. by John Timmer, Ars Technica, Jan. 19, 2016
http://arstechnica.com/science/2016/01/stars-bizarre-optical-antics-go-back-at-least-a-century/
KIC 8462852 Faded at an Average Rate of 0.165+-0.013
Magnitudes Per Century From 1890 To 1989 by Bradley
E. Schaefer (Submitted on 13 Jan 2016) rXiv:1601.03256v1
[astro-ph.SR] http://arxiv.org/abs/1601.03256
Yours,
Star’s bizarre optical antics go back at least a century.
Alien civilization still on the table as data comes out
of the archives. by John Timmer, Ars Technica, Jan. 19, 2016
http://arstechnica.com/science/2016/01/stars-bizarre-optical-antics-go-back-at-least-a-century/
KIC 8462852 Faded at an Average Rate of 0.165+-0.013
Magnitudes Per Century From 1890 To 1989 by Bradley
E. Schaefer (Submitted on 13 Jan 2016) rXiv:1601.03256v1
[astro-ph.SR] http://arxiv.org/abs/1601.03256
Yours,
Paul H.
Friday, 8 January 2016
Dance of the dinosaurs?
Dance of the dinosaurs?
Dance of the dinosaurs? Strange gouges hint at bird-like
mating rituals by Amina Khan, Los Angeles Times, Jan. 6, 2016
http://www.latimes.com/science/sciencenow/la-sci-sn-dinosaurs-mating-courtship-birds-20160107-story.html
Meat-Eating Dinosaurs Had Dancing Competitions Over Mates
by edd, Fossil forum, January 7, 2016
http://www.thefossilforum.com/index.php?/topic/60412-meat-eating-dinosaurs-had-dancing-competitions-over-mates/
Lockley, M. G., R. T. McCrea, L. G. Buckley, J. D. Lim, N. A. Matthews,
and many others, 2016, Theropod courtship: large scale physical
evidence of display arenas and avian-like scrape ceremony
behaviour by Cretaceous dinosaurs. Scientific Reports. vol. 6,
Article no: 18952 (2016) http://www.nature.com/articles/srep18952
Yours,
Paul H
Dance of the dinosaurs? Strange gouges hint at bird-like
mating rituals by Amina Khan, Los Angeles Times, Jan. 6, 2016
http://www.latimes.com/science/sciencenow/la-sci-sn-dinosaurs-mating-courtship-birds-20160107-story.html
Meat-Eating Dinosaurs Had Dancing Competitions Over Mates
by edd, Fossil forum, January 7, 2016
http://www.thefossilforum.com/index.php?/topic/60412-meat-eating-dinosaurs-had-dancing-competitions-over-mates/
Lockley, M. G., R. T. McCrea, L. G. Buckley, J. D. Lim, N. A. Matthews,
and many others, 2016, Theropod courtship: large scale physical
evidence of display arenas and avian-like scrape ceremony
behaviour by Cretaceous dinosaurs. Scientific Reports. vol. 6,
Article no: 18952 (2016) http://www.nature.com/articles/srep18952
Yours,
Paul H
Thursday, 7 January 2016
K-Pg Boundary Section In New Jersey
K-Pg Boundary Section In New Jersey
Behind a Shopping Center in New Jersey, Signs of a Mass
Extinction by Kenneth Chang, New York Times, Jan. 4, 2016.
http://nyti.ms/1ZKUijp
Paleontologists Dig up Prehistoric Fossils Behind New
Jersey Shopping Center, Yahoo News, Nov. 17, 2014
http://news.yahoo.com/paleontologist-dinosaur-new-jersey-strip-mall-extinction-165632314.html
https://web.archive.org/save/http://news.yahoo.com/paleontologist-dinosaur-new-jersey-strip-mall-extinction-165632314.html
An unrelated article about dinosaur tracks is:
Amateur Sleuths on the Dinosaur Trail
by David Mark Simpson, New York Times, Jan. 4, 2016
http://www.nytimes.com/2016/01/05/science/dinosaurs-amateur-paleontology-picketwire-canyon-colorado.html
Yours,
Paul H.
Behind a Shopping Center in New Jersey, Signs of a Mass
Extinction by Kenneth Chang, New York Times, Jan. 4, 2016.
http://nyti.ms/1ZKUijp
Paleontologists Dig up Prehistoric Fossils Behind New
Jersey Shopping Center, Yahoo News, Nov. 17, 2014
http://news.yahoo.com/paleontologist-dinosaur-new-jersey-strip-mall-extinction-165632314.html
https://web.archive.org/save/http://news.yahoo.com/paleontologist-dinosaur-new-jersey-strip-mall-extinction-165632314.html
An unrelated article about dinosaur tracks is:
Amateur Sleuths on the Dinosaur Trail
by David Mark Simpson, New York Times, Jan. 4, 2016
http://www.nytimes.com/2016/01/05/science/dinosaurs-amateur-paleontology-picketwire-canyon-colorado.html
Yours,
Paul H.
Sunday, 3 January 2016
Online PDF files Of Monographs About Trilobites and Labrrea Tar Pits
Online PDF files Of Monographs About Trilobites and Labrrea Tar Pits
Happy New Year.
The Natural History Museum of Los Angeles County has
PDF versions of its publications about their research
online. They included a monograph about Cambrian
trilobites and another about fossils from the La Brea
Tar Pits. They are:
Sundberg, Frederick A, 1994, Corynexochida and Ptychopariida
(Trilobita, Arthropoda) of the Ehmaniella Biozone (Middle Cambrian),
Utah and Nevada. Contributions in Science no. 446. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/CS446.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
Harris, J. M., ed., 2015, La Brea and Beyond: The Paleontology of
Asphalt-Preserved Biotas. Science Series no. 42. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/lacm-42.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
There are several more monographs about fossils at:
http://www.nhm.org/site/research-collections/research-tools/publications
Yours,
Paul H.
Happy New Year.
The Natural History Museum of Los Angeles County has
PDF versions of its publications about their research
online. They included a monograph about Cambrian
trilobites and another about fossils from the La Brea
Tar Pits. They are:
Sundberg, Frederick A, 1994, Corynexochida and Ptychopariida
(Trilobita, Arthropoda) of the Ehmaniella Biozone (Middle Cambrian),
Utah and Nevada. Contributions in Science no. 446. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/CS446.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
Harris, J. M., ed., 2015, La Brea and Beyond: The Paleontology of
Asphalt-Preserved Biotas. Science Series no. 42. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/lacm-42.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
There are several more monographs about fossils at:
http://www.nhm.org/site/research-collections/research-tools/publications
Yours,
Paul H.
Online PDF files Of Monographs About Trilobites and La Brea Tar Pits 03JAN2016
Online PDF files Of Monographs About Trilobites and La Brea Tar Pits
Happy New Year.
The Natural History Museum of Los Angeles County has PDF versions of its publications about their research online. They included a monograph about Cambrian trilobites and another about fossils from the La Brea Tar Pits. They are:
Sundberg, Frederick A, 1994, Corynexochida and Ptychopariida (Trilobita, Arthropoda) of the Ehmaniella Biozone (Middle Cambrian),
Utah and Nevada. Contributions in Science no. 446. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/CS446.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
The Natural History Museum of Los Angeles County has PDF versions of its publications about their research online. They included a monograph about Cambrian trilobites and another about fossils from the La Brea Tar Pits. They are:
Sundberg, Frederick A, 1994, Corynexochida and Ptychopariida (Trilobita, Arthropoda) of the Ehmaniella Biozone (Middle Cambrian),
Utah and Nevada. Contributions in Science no. 446. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/CS446.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
Harris, J. M., ed., 2015, La Brea and Beyond: The Paleontology of Asphalt-Preserved Biotas. Science Series no. 42. Los Angeles :
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/lacm-42.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
There are several more monographs about fossils at:
http://www.nhm.org/site/research-collections/research-tools/publications
Yours,
Paul H.
Natural History Museum of Los Angeles County,
http://www.nhm.org/site/sites/default/files/pdf/contrib_science/lacm-42.pdf
http://www.nhm.org/site/research-collections/research-tools/publications
There are several more monographs about fossils at:
http://www.nhm.org/site/research-collections/research-tools/publications
Yours,
Paul H.
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