Articles About Meteorites And Asteroids

Articles About Meteorites And Asteroids

Meteorite Studies Reveal Surprises About Earth's Formation
By Elizabeth Howell, SpaceCom, January 26, 2017
http://www.space.com/35468-earth-building-blocks-different-than-thought.html

Nice picture of Meteorite On Mars

Curiosity Finds An(other) Alien Visitor on Mars
Earth Isn't the Only Planet Hit by Meteorites. Mars Gets
Them, Too. by Phil Plait, Blog-Slate Magazine, January 23, 2017
http://www.slate.com/blogs/bad_astronomy/2017/01/23/curiosity_sees_a_meteorite_on_the_surface_of_mars.html

This image was taken by Mastcam: Right (MAST_RIGHT)
onboard NASA's Mars rover Curiosity on Sol 1577
(2017-01-12 11:21:52 UTC). NASA/JPL-Caltech/MSSS
http://mars.nasa.gov/msl/multimedia/raw/?rawid=1577MR0080320000800289E01_DXXX&s=1577

Deflecting Asteroids

Objective: To deflect asteroids, thus preventing their collision
with Earth Space Daily, Madrid, Spain, January 27, 2017
http://www.spacedaily.com/reports/Objective_To_deflect_asteroids_thus_preventing_their_collision_with_Earth_999.html

Scientists working on deflecting asteroids headed for Earth
The Indian Express, January 27, 2017
http://indianexpress.com/article/technology/science/scientists-working-on-deflecting-asteroids-headed-for-earth-4493719/

Yours,

Paul H.

Deflecting Asteroids

Deflecting Asteroids

Objective: To deflect asteroids, thus preventing their collision
with Earth Space Daily, Madrid, Spain, January 27, 2017
http://www.spacedaily.com/reports/Objective_To_deflect_asteroids_thus_preventing_their_collision_with_Earth_999.html

Scientists working on deflecting asteroids headed for Earth
The Indian Express, January 27, 2017
http://indianexpress.com/article/technology/science/scientists-working-on-deflecting-asteroids-headed-for-earth-4493719/

Yours,

Paul H.

Nice Picture of Meteorite On Mars

Nice Picture of Meteorite On Mars

Curiosity Finds An(other) Alien Visitor on Mars
Earth Isn't the Only Planet Hit by Meteorites. Mars Gets
Them, Too. by Phil Plait, Blog-Slate Magazine, January 23, 2017
http://www.slate.com/blogs/bad_astronomy/2017/01/23/curiosity_sees_a_meteorite_on_the_surface_of_mars.html

This image was taken by Mastcam: Right (MAST_RIGHT)
onboard NASA's Mars rover Curiosity on Sol 1577
(2017-01-12 11:21:52 UTC). NASA/JPL-Caltech/MSSS
http://mars.nasa.gov/msl/multimedia/raw/?rawid=1577MR0080320000800289E01_DXXX&s=1577

Yours,

Paul H.

Online Comet and Meteorite Lectures

Online Comet and Meteorite Lectures

P33I Whipple Lecture:
The Complex Evolution of Comet Nuclei
American Geophysical Union (AGU)
Published on Aug 4, 2015
AGU Fall Meeting 2011 - P33I
https://www.youtube.com/watch?v=hf4irGb8QLE

The meaning of meteorites
Royal Astronomical Society
Published on Mar 24, 2015
Royal Astronomical Society public lecture, 10 February 2015
by Dr Ted Nield, Geoscientist Magazine
https://www.youtube.com/watch?v=6lgd_bJELtM

Yours,

Paul H.

Rare meteorites common in the Ordovician period

Rare meteorites common in the Ordovician period

A 466-million-year-old space collision is still raining shrapnel
on Earth By Sarah Kaplan, Washington Post, January 23, 2016
https://www.washingtonpost.com/news/speaking-of-science/wp/2017/01/23/a-466-million-year-old-space-collision-is-still-raining-shrapnel-down-on-earth/

Today’s rare meteorites were once common, The Field Museum,
Monday, January 23, 2017
https://www.fieldmuseum.org/science/blog/todays-rare-meteorites-were-once-common

The paper is:

Heck, P. R., B. Schmitz, W. F. Bottke, S. S. Rout, N. T. Kita, A. Cronholm,
C. Defouilloy, A. Dronov, and F. Terfelt, 2017, Rare meteorites common
in the Ordovician period. Nature Astronomy 1, Article number: 0035 (2017)
doi:10.1038/s41550-016-0035
http://www.nature.com/articles/s41550-016-0035

Yours,

Paul H.

Cosmic dust found in city rooftop gutters

Cosmic dust found in city rooftop gutters
PhysOrg, December 7, 2016

https://phys.org/news/2016-12-cosmic-city-rooftop-gutters.html

http://www.sciencealert.com/cosmic-dust-has-been-discovered-on-city-rooftops-for-the-first-time

The paper is:
Genge, M.J., J. Larsen, M. Van Ginneken, and M.D. Suttle, 2016,
An urban collection of modern-day large micrometeorites:
Evidence for variations in the extraterrestrial dust flux through
the Quaternary. Geology, First published online December 2016,
doi: 10.1130/G38352.1

http://geology.gsapubs.org/content/early/2016/12/05/G38352.1.abstract

https://spiral.imperial.ac.uk/bitstream/10044/1/42484/9/Geology-2016-Genge-G38352.1.pdf

Yours,

Paul H.

Venus Global GIS Mapping Application

Venus Global GIS Mapping Application

Venus Global GIS Mapping Application
USGS Astrogeology Science Center
https://webgis2.wr.usgs.gov/Venus_Global_GIS/
https://astrogeology.usgs.gov/maps

Venus Magellan SAR FMAP Left Look Global Mosaic 75m
https://astrogeology.usgs.gov/search/map/Venus/Magellan/Venus_Magellan_LeftLook_mosaic_global_75m_Internal

Yours,

Paul H.

Multiple-Impact Theory of Moon's Origin Revisited

Multiple-Impact Theory of Moon's Origin Revisited

Study suggests Earth once had many moonlets — until they
merged to form the moon By Sarah Kaplan, Washington Post
https://www.washingtonpost.com/news/speaking-of-science/wp/2017/01/10/study-suggests-earth-once-had-many-moonlets-until-they-merged-to-form-the-moon/

How Earth's previous moons collided to form the moon:
New theory. American Technion Society, January 9, 2017
https://www.sciencedaily.com/releases/2017/01/170109125125.htm

The Many-Moons Theory by Alan Burdick, The New Yorker
http://www.newyorker.com/tech/elements/the-many-moons-theory

The paper is:

Rufu, R., O. Aharonson, and H. B. Perets, 2016, A multiple-
impact origin for the Moon. Nature Geoscience (2017)
doi:10.1038/ngeo2866 Received 14 September 2016
Accepted 30 November 2016 Published online 09 January 2017
http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2866.html

Yours,

Paul H.

Moon Zircons dated at 4.51 Billion Years

Moon Zircons dated at 4.51 Billion Years

The moon is older than scientists thought, UCLA-led
research team reports< UCLA Newsroom, January 11, 2017
http://newsroom.ucla.edu/releases/the-moon-is-older-than-scientists-thought-ucla-led-research-team-reports

Scientists: Moon over the hill at 4.51 billion years old
By Marcia Dunn and Associated Press, Washington Post,
January 13, 2016
https://www.washingtonpost.com/national/health-science/the-moon-is-older-than-scientists-thought/2017/01/13/7633e5f2-d83a-11e6-9a36-1d296534b31e_story.html

Moon is much older than we thought, scientists find
The Independent, Andrew Griffen, January 12, 2017
http://www.independent.co.uk/news/science/moon-age-how-old-earth-planet-satellite-science-scientists-ucla-a7524071.html

the paper is:

Barboni, M., P. Boehnke, B. Keller, I. E. Kohl, B. Schoene,
E. D. Young, and Kevin D. McKeegan, 2016, Early formation
of the Moon 4.51 billion years ago. Science Advances.
Vol. 3, no. 1, e1602365,DOI: 10.1126/sciadv.1602365
http://advances.sciencemag.org/content/3/1/e160236
http://advances.sciencemag.org/content/3/1/e1602365.figures-only

Yours,

Paul H.

Two New Papers About Younger Dryas Impact Hypothesis

Two New Papers About Younger Dryas Impact Hypothesis

There are two new papers about the Younger Dryas
Impact Hypotheses

Studies refute hypothesis on what caused abrupt climate
change thousands of years ago, ScienceDaily, December 19, 2016
https://source.wustl.edu/2016/12/case-missing-diamonds/
https://www.sciencedaily.com/releases/2016/12/161219115304.htm

Missing Diamonds Don't Support Case for Younger Dryas
Impact, Washington University in St. Louis, Dec. 20, 2016
http://spaceref.com/news/viewpr.html?pid=50132

The papers are:

Daulton, T. L., S. Amari, A. C. Scott, M. Hardiman, N. Pinter, and
R. S. Anderson, 2016, Comprehensive analysis of nanodiamond
evidence relating to the Younger Dryas Impact Hypothesis.
Journal of Quaternary Science, Early View, First published:
19 December 2016, DOI: 10.1002/jqs.2892
http://onlinelibrary.wiley.com/doi/10.1002/jqs.2892/abstract
http://onlinelibrary.wiley.com/store/10.1002/jqs.2892/asset/jqs2892.pdf

Scott, A. C., M. Hardiman, N. Pinter, S. Anderson, T. L. Daulton,
A. Ejarque, P. Finch, and A. Carter-Champion, 2016, Interpreting
palaeofire evidence from fluvial sediments : a case study from
Santa Rosa Island, California with implications for the Younger
Dryas Impact Hypothesis. Journal of Quaternary Science.
First published: 19 December 2016, DOI: 10.1002/jqs.2914
http://onlinelibrary.wiley.com/doi/10.1002/jqs.2914/abstract
http://onlinelibrary.wiley.com/doi/10.1002/jqs.2914/epdf

Yours,

Paul H.

Big Diamonds Bring Scientists A Message From Superdeep Earth

Big Diamonds Bring Scientists A Message From Superdeep Earth

Big Diamonds Bring Scientists A Message From Superdeep Earth
NPR
http://www.npr.org/sections/thetwo-way/2016/12/15/505386423/big-diamonds-bring-scientists-a-message-from-superdeep-earth

Large, rare diamonds offer window into inner workings of Earth's mantle
https://www.eurekalert.org/pub_releases/2016-12/gioa-lrd120716.php
http://phys.org/news/2016-12-biggest-diamonds-deep-mantle-metallic.html
http://www.livescience.com/57222-biggest-diamonds-form-in-liquid-metal-pools.html

Diamonds: Huge, rare precious stones form 750km underground in
Earth's mantle, International Business Times UK
http://www.ibtimes.co.uk/huge-rare-diamonds-are-born-pools-liquid-metal-deep-below-earths-surface-1596725

the paper is:

Smith, E. M., S. B. Shirey, F. Nestola, and others, 2016, Large gem
diamonds from metallic liquid in Earth’s deep mantle. Science.
Vol. 354, Issue 6318, pp. 1403-1405. DOI: 10.1126/science.aal1303
http://science.sciencemag.org/content/354/6318/1403

Yours,

Paul H.

Digitate Opaline Silica Structures (Biosignatures ?) Found on Mars

Digitate Opaline Silica Structures (Biosignatures ?) Found on Mars

Scientists Think They Finally Found Evidence of Ancient Life on Mars. by Sage Lazzaro, Observer
http://observer.com/2016/11/scientists-think-they-finally-found-evidence-of-ancient-life-on-mars/

The paper is:

Ruff, S. W., and J. D. Farmer, 2016, Silica deposits on Mars with features resembling hot spring biosignatures at El Tatio in Chile. Nature Communications 7, Article number: 13554 (2016) doi:10.1038/ncomms13554 Received: 14 April 2016, Accepted: 13 October 2016 Published online: 17 November 2016
http://www.nature.com/articles/ncomms13554

Yours,

Paul H.

Review of Recent Younger Dryas Impact Hypothesis Podcast

Review of Recent Younger Dryas Impact Hypothesis Podcast

For a review by Jason Colavito of Graham Hancock's latest comments about the Younger Dryas Impact Hypothesis, look at:

Graham Hancock Appears on Joe Rogan Podcast and Spends Three and Half Hours Bashing Skeptics by Jason Colavito
http://www.jasoncolavito.com/blog/graham-hancock-appears-on-joe-rogan-podcast-and-spends-three-and-half-hours-bashing-skeptics

Yours,

Paul H.

Origin of Alleged Impact Tsunami Chevrons Re-examined

Origin of Alleged Impact Tsunami Chevrons Re-examined

The Mystery of Chevrons Revealed
American Geophysical Union (AGU) Talk
2014 Fall Meeting, Section: Natural Hazards
https://www.youtube.com/watch?v=JnjfhhdnAzk

Related links:

Michaela Spiske
https://independent.academia.edu/MichaelaSpiske

Garcia Garcia, A-M.., Spiske, M., Tsukamoto, S., and
Schmidt, V., 2012, Sedimentology of coastal chevron
deposits – tsunamigenic versus aeolian origin. American
Geophysical Union, Fall Meeting 2012, abstract #OS33B-1821
http://adsabs.harvard.edu/abs/2012AGUFMOS33B1821G

Spiske, M., Garcia Garcia, A-M., Tsukamoto, S., and
Schmidt, V., 2013, Coastal chevron deposits –
sedimentology, methods and aeolian versus tsunamigenic
origin. Geophysical Research. Abstracts. vol. 15,
EGU2013-2892, EGU General Assembly 2013
https://www.academia.edu/28071876/Coastal_chevron_deposits_-_sedimentology_methods_and_aeolian_versus_tsunamigenic_origin

Yours,

Paul.

Drill Cores Reveal How Peak Rings of Chicxulub Crater Formed

Drill Cores Reveal How Peak Rings of Chicxulub Crater Formed

Update: Drilling of dinosaur-killing impact crater explains
buried circular hills by Eric Hand, Science News, Nov. 17, 2016
http://www.sciencemag.org/news/2016/11/update-drilling-dinosaur-killing-impact-crater-explains-buried-circular-hills

Wendel, J., 2016, Cores from crater tied to dinosaur demise
validate impact theory, Eos, 97, doi:10.1029/2016EO063123.
Published on 17 November 2016.
https://eos.org/articles/cores-crater-tied-dinosaur-demise-validate-impact-theory

the paper is:

Morgan, J. V., S. P. S. Gulick, and many others, 2016, The
formation of peak rings in large impact craters. vol. 354,
no. 6314, pp. 878-882 DOI: 10.1126/science.aah6561
http://science.sciencemag.org/content/354/6314/878

Yours,

Paul H.

Lunar impact: how the Moon’s Mare Orientale was formed

Lunar impact: how the Moon’s Mare Orientale was formed

Subsurface map of moon reveals origin of mysterious impact
crater rings by Paul Voosen, Science News, Oct. 27, 2016
http://www.sciencemag.org/news/2016/10/subsurface-map-moon-reveals-origin-mysterious-impact-crater-rings

Lunar impact: how the Moon’s Mare Orientale was formed
Astronomy Now, October 29, 2016
https://astronomynow.com/2016/10/29/lunar-impact-how-the-moons-mare-orientale-was-formed/

Insights into giant impacts on moon, Earth and Mars NASA/Jet
Propulsion Laboratory, Brown university, October 27, 2016
http://www.nasa.gov/feature/jpl/nasa-moon-mission-shares-insights-into-giant-impacts/
https://solarsystem.nasa.gov/news/2016/10/27/nasa-moon-mission-shares-insights-into-giant-impacts
https://www.sciencedaily.com/releases/2016/10/161027141000.htm
https://www.sciencedaily.com/releases/2016/10/161027142654.htm

The paper is:

Zuber, M. T., D. E. Smith, and many others, 2016, Gravity field
of the Orientale basin from the Gravity Recovery and Interior
Laboratory Mission. Science. vol. 354, no. 6311, pp. 438-441
DOI: 10.1126/science.aag0519
http://science.sciencemag.org/content/354/6311/438

Yours,

Paul H.

Beaverhead Impact Structure Publications

Beaverhead Impact Structure Publications

McCafferty, 1995, A. E., Assessing the presence of a buried meteor impact crater using geophysical data, south-central Idaho Thesis, Colorado School of Mines. 1995.
https://dspace.library.colostate.edu/handle/11124/170341
https://dspace.library.colostate.edu/handle/11124/170341?show=full
https://dspace.library.colostate.edu/bitstream/handle/11124/170341/T4651.pdf?sequence=1&isAllowed=y

Carr, J., and Link, P.K., 1999, Neoproterozoic conglomerate and breccia in the formation of Leaton Gulch, Grouse Peak, northern Lost River Range, Idaho: Relation to Beaverhead Impact Structure,
in Hughes, S.S., and Thackray, G.D., eds., Guidebook to the Geology of Eastern Idaho: Pocatello, Idaho Museum of Natural History, p. 21-29
http://imnh.isu.edu/digitalatlas/geo/gsa/gsafrm.htm

Yours,

Paul H.

Meteorites reveal lasting drought on Mars

Meteorites reveal lasting drought on Mars

Mars' Mega-Drought Revealed in Meteorite Rust 

NASA's Mars rover Opportunity has been used to measure the weathering of meteorites on the Red Planet, revealing just how little water there is on the surface. Space, November 11, 2016
http://www.seeker.com/mars-meteorite-water-opportunity-rover-habitability-astrobiology-2089821823.html

Meteorites reveal lasting drought on Mars
https://www.stir.ac.uk/news/2016/11/meteorites-reveal-drought-on-mars/

https://www.sciencedaily.com/releases/2016/11/161111094715.htm

http://www.natureworldnews.com/articles/31680/20161112/meteorites-mars-suggest-super-drought-wiped-out-alien-life.htm

The paper is:
Schröder, C., P. A. Bland, M. P. Golombek, J. W. Ashley, N. H. Warner, and J. A. Grant, 2016a, Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars. Nature Communications, 2016; 7: 13459 DOI: 10.1038/ncomms13459
http://www.nature.com/articles/ncomms13459

Schröder, C., P. A. Bland, M. P. Golombek, J. W. Ashley, N. H. Warner, and J. A. Grant, 2016b, Late-Amazonian chemical weathering rate for Meridiani Planum, Mars, derived from candidate stony meteorite finds. 79th Annual Meeting of the Meteoritical Society (2016)
http://www.hou.usra.edu/meetings/lpsc2015/eposter/2354.pdf

http://www.hou.usra.edu/meetings/metsoc2016/pdf/6529.pdf
Schröder, C., P. and others, nd, Properties and distribution of paired candidate stony meteorites at Meridiani Planum, Mars
https://home.dtm.ciw.edu/users/lrn/preprints/schroeder2010.pdf

http://home.dtm.ciw.edu/users/lrn/publications.html

Yours,

Paul H.

End-Permian Mass Extinction Reexamined

End-Permian Mass Extinction Reexamined

End-Permian mass extinction was not so massive
By Belinda Smith, Cosmos Magazine
https://cosmosmagazine.com/palaeontology/mass-extinctions-were-not-so-massive-study

US paleontologists states once the dust settled
following the 'great dying' around 250 million
years ago, nearly 20% of species remained – not
4%. Belinda Smith reports.

Paleontologist suggests 'great dying' 252 million
years ago wasn't as bad as thought, October 4, 2016
http://phys.org/news/2016-10-paleontologist-great-dying-million-years.html

The paper is:

Stanley, S. M., 2016, Estimates of the magnitudes
of major marine mass extinctions in earth history.
Proceedings of the National Academy of Sciences,
US, vol. 113 no. 42 E6325-E6334
http://www.pnas.org/content/113/42/E6325

Yours,


Paul H.

NASA’s Plan to Hunt for Fossils on Mars

NASA’s Plan to Hunt for Fossils on Mars

NASA's Amazing 2020 Mars Mission to Search for
Ancient Fossils --"Unlike Earth, Mars is a Beautifully
Preserved Fossil" The Daily Galaxy, ‎October 19, 2016‎
http://www.dailygalaxy.com/my_weblog/2016/10/nasas-amazing-2020-mars-mission-to-search-for-ancient-fossils-unlike-earth-mars-is-a-beautifully-pre.html

NASA’s Bold Plan to Hunt for Fossils on Mars
National Geographic, October 17, 2016
http://news.nationalgeographic.com/2016/10/alien-fossils-nasa-exploring-mars-2020-space-science/

NASA Plans To Search For Martians: Where Will They
Begin The Hunt? Science World Report, Oct. 18, 2016‎
http://www.scienceworldreport.com/articles/50281/20161018/nasa-plans-search-martians-where-will-begin-hunt.htm

Yours,

Paul H.