Eugene Merle Shoemaker

Infobox Scientist
name = Eugene Merle Shoemaker
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caption = Eugene Shoemaker at a stereoscopic microscope used for asteroid discovery
birth_date = April 28, 1928
birth_place = Los Angeles, California
death_date = July 18, 1997 (aged 69)
death_place = Alice Springs, Australia
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alma_mater = Princeton
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known_for = planetary science Comet Shoemaker-Levy 9
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Eugene Merle Shoemaker (or Gene Shoemaker) (April 28, 1928 – July 18, 1997) was one of the founders of the fields of planetary science.Born in Los Angeles, California, he is best known for co-discovering the Comet Shoemaker-Levy 9 with his wife Carolyn Shoemaker and David Levy.

Scientific contributions

Meteor Crater

For his Ph.D. at Princeton (1960), Dr. Shoemaker conclusively showed that Barringer Meteor Crater, located near Winslow, Arizona, arose from a meteor impact. From a Geophysical standpoint, it had been proven by 1929 that Meteor Crater was indeed an impact structure. Such personages as Daniel M. Barringer had proven the impact origin by the year 1915 by studying the local terrain, ejecta and the rock floor which is acknowledged in David Krings recent guidebook to Meteor Crater (2007), with Forrest Ray Moulton, an astronomer/mathematician at the University of Chicago had proven in two papers the impact origin as well as predicting where some of the ejecta fragments might be, all by the year 1929. Subsequent work by H. H. Nininger during the 1940-1950 period was aimed at the search for ejecta and other impact byproducts. Shoemaker in the second paragraph of his paper on Impact Mechanics as published in the volume "Moon, Meteorites, and Comets" clearly picked up from where others before him had left off, using their work as a springboard for further studies. He himself lists the references to those earlier papers. Kring in his recent "Guidebook to the Geology of Barringer Meteorite Crater (a.k.a. Meteor Crater)", 2007, clearly points out how the work by Barringer was of a higher quality and more accurate than that of G. K. Gilbert in 1891. Since then Shoemaker has done more than any other person to advance the idea that sudden geologic changes can arise from asteroid strikes and that asteroid strikes are common over geologic time periods. Previously, astroblemes were thought to be remnants of extinct volcanoes -- even on the Moon.

Shoemaker gained this insight after inspecting craters that remained after underground atomic bomb tests at the Nevada Test Site at Yucca Flats. He found a ring of ejected material; in both cases it included shocked quartz (coesite), a form of quartz that has a microscopically unique structure caused by intense pressure.

Astrogeology and Apollo

Dr. Shoemaker helped pioneer the field of astrogeology by founding the Astrogeology Research Program of the USGS in 1961 at Flagstaff, Arizona. He was its first director. He was prominently involved in the Lunar Ranger missions to the Moon, which showed that the Moon was covered with a wide size range of impact craters. Dr. Shoemaker was also involved in the training of the American astronauts. He was set to be the first geologist to walk on the Moon but was disqualified due to being diagnosed with Addison's disease, a disorder of the adrenal gland. Shoemaker would train astronauts during field trips to Meteor Crater and Sunset Crater near Flagstaff. [http://astrogeology.usgs.gov/About/AstroHistory/astronauts.html]

Coming to Caltech in 1969, he started a systematic search for Earth orbit-crossing asteroids, which resulted in the discovery of several families of such asteroids, including the Apollo asteroids.

Comet Shoemaker-Levy 9

Dr. Shoemaker received the Barringer Medal in 1984 and a National Medal of Science in 1992. In 1993, he co-discovered Comet Shoemaker-Levy 9. This comet was unique in that it provided the first opportunity for scientists to observe the planetary impact of a comet. Shoemaker-Levy 9 collided with Jupiter in 1994. The resulting impact caused a massive "scar" on the face of Jupiter. Most scientists at the time were dubious of whether there would even be any evident markings on the planet.

Death

Dr. Shoemaker spent much of his later years searching for and finding several previously unnoticed or undiscovered meteor craters around the world. It was during one such expedition that Dr. Shoemaker died in a car accident while on the Tanami Road northwest of Alice Springs, Australia in July 1997. On July 31, 1999, some of his ashes were carried to the Moon by the Lunar Prospector space probe in a capsule designed by Carolyn Porco. To date, he is the only person to have been buried on the Moon. [ [http://www.space.com/news/080328-moon-burial.html SPACE.com — Fly Me to the Moon ... Forever ] ]

The brass foil wrapping of Dr. Shoemaker's memorial capsule is inscribed with images of Comet Hale-Bopp, the Barringer Crater, and a quotation from Romeo and Juliet reading:"And, when he shall die
Take him and cut him out in little stars
And he will make the face of heaven so fine
That all the world will be in love with night
And pay no worship to the garish sun." [ [http://www2.jpl.nasa.gov/sl9/news82.html NASA.gov - Eugene Shoemaker Ashes Carried on Lunar Prospector ] ]

Bibliography

*Citation
id = PMID:9596575
url= http://www.ncbi.nlm.nih.gov/pubmed/9596575
last=Farley
first=K. A.
last2=Montanari
first2=A.
last3=Shoemaker
first3=E. M.
last4=Shoemaker
first4=C. S.
authorlink4=Carolyn S. Shoemaker
publication-date=1998 May 22
year=1998
title=Geochemical evidence for a comet shower in the late Eocene.
volume=280
issue=5367
periodical=Science
pages=1250-3
*Citation
id = PMID:8929403
url= http://www.ncbi.nlm.nih.gov/pubmed/8929403
last=Nozette
first=S. D.
last2=Lichtenberg
first2=C. L.
last3=Spudis
first3=P. D.
last4=Bonner
first4=R.
last5=Ort
first5=W.
last6=Malaret
first6=E.
last7=Robinson
first7=M. S.
last8=Shoemaker
first8=E. M.
publication-date=1996 Nov 29
year=1996
title=The Clementine bistatic radar experiment.
volume=274
issue=5292
periodical=Science
pages=1495-8
*Citation
id = PMID:17737080
url= http://www.ncbi.nlm.nih.gov/pubmed/17737080
last=Shoemaker
first=E. M.
last2=Robinson
first2=M. S.
last3=Eliason
first3=E. M.
publication-date=1994 Dec 16
year=1994
title=The South Pole Region of the Moon as Seen by Clementine.
volume=266
issue=5192
periodical=Science
pages=1851-1854
doi = 10.1126/science.266.5192.1851
*Citation
id = PMID:17737076
url= http://www.ncbi.nlm.nih.gov/pubmed/17737076
last=Nozette
first=S. D.
last2=Rustan
first2=P. L.
last3=Pleasance
first3=L. D.
last4=Kordas
first4=J. F.
last5=Lewis
first5=I. T.
last6=Park
first6=H. S.
last7=Priest
first7=R. E.
last8=Horan
first8=D. M.
last9=Regeon, P.; Lichtenberg, C. L.; Shoemaker, E. M.; Eliason, E. M.; McEwen, A. S.; Robinson, M. S.; Spudis, P. D.; Acton, C. H.; Buratti, B. J.; Duxbury, T. C.; Baker, D. N.; Jakosky, B. M.; Blamont, J. E.; Corson, M. P.; Resnick, J. H.; Rollins, C. J.; Davies, M. E.; Lucey, P. G.; Malaret, E.; Massie, M. A.; Pieters, C. M.; Reisse, R. A.; Simpson, R. A.; Smith, D. E.; Sorenson, T. C.; Breugge, R. W.; Zuber, M. T.
publication-date=1994 Dec 16
year=1994
title=The Clementine Mission to the Moon: Scientific Overview.
volume=266
issue=5192
periodical=Science
pages=1835-1839
doi = 10.1126/science.266.5192.1835
*Citation
id = PMID:17770832
url= http://www.ncbi.nlm.nih.gov/pubmed/17770832
last=Weaver
first=H. A.
last2=Feldman
first2=P. D.
last3=A'Hearn
first3=M. F.
last4=Arpigny
first4=C.
last5=Brown
first5=R. A.
last6=Helin
first6=E. F.
authorlink6=Eleanor F. Helin
last7=Levy
first7=D. H.
authorlink7=David H. Levy
last8=Marsden
first8=B. G.
authorlink8=Brian G. Marsden
last9=Meech, K. J.; Larson, S. M.; Noll, K. S.; Scotti, J. V.; Sekanina, Z.; Shoemaker, C. S.; Shoemaker, E. M.; Smith, T. E.; Storrs, A. D.; Yeomans, D. K.; Zellner, B.
publication-date=1994 Feb 11
year=1994
title=Hubble Space Telescope Observations of Comet P/Shoemaker-Levy 9 (1993e).
volume=263
issue=5148
periodical=Science
pages=787-791
doi = 10.1126/science.263.5148.787
*Citation
id = PMID:17793016
url= http://www.ncbi.nlm.nih.gov/pubmed/17793016
last=Soderblom
first=L. A.
last2=Kieffer
first2=S. W.
last3=Becker
first3=T. L.
last4=Brown
first4=R. H.
last5=Cook
first5=A. F. 2nd
last6=Hansen
first6=C. J.
last7=Johnson
first7=T. V.
last8=Kirk
first8=R. L.
last9=Shoemaker
first9=E. M.
publication-date=1990 Oct 19
year=1990
title=Triton's Geyser-Like Plumes: Discovery and Basic Characterization.
volume=250
issue=4979
periodical=
pages=410-415
doi = 10.1126/science.250.4979.410

*Kring, D.A., (2007) "Guidebook to the Geology of Barringer Meteorite Crater, Arizona (a.k.a. Meteor Crater)". Lunar and Planetary Institute contribution No. 1355

*Citation
id = PMID:17755997
url= http://www.ncbi.nlm.nih.gov/pubmed/17755997
last=Smith
first=B. A.
last2=Soderblom
first2=L. A.
last3=Banfield
first3=D.
last4=Barnet
first4=C. D.
last5=Basilevsky
first5=A. T.
last6=Beebe
first6=R. F.
last7=Bollinger
first7=K.
last8=Boyce
first8=J. M.
last9=Brahic, A.; Briggs, G. A.; Brown, R. H.; Chyba, C.; Collins, S. A.; Colvin, T.; Cook, A. F. 2nd; Crisp, D.; Croft, S. K.; Cruikshank, D.; Cuzzi, J. N.; Danielson, G. E.; Davies, M. E.; De Jong, E.; Dones, L.; Godfrey, D.; Goguen, J.; Grenier, I.; Haemmerle, V. R.; Hammel, H.; Hansen, C. J.; Helfenstein, C. P.; Howell, C.; Hunt, G. E.; Ingersoll, A. P.; Johnson, T. V.; Kargel, J.; Kirk, R.; Kuehn, D. I.; Limaye, S.; Masursky, H.; McEwen, A.; Morrison, D.; Owen, T.; Owen, W.; Pollack, J. B.; Porco, C. C.; Rages, K.; Rogers, P.; Rudy, D.; Sagan, C.; Schwartz, J.; Shoemaker, E. M.; Showalter, M.; Sicardy, B.; Simonelli, D.; Spencer, J.; Sromovsky, L. A.; Stoker, C.; Strom, R. G.; Suomi, V. E.; Synott, S. P.; Terrile, R. J.; Thomas, P.; Thompson, W. R.; Verbiscer, A.; Veverka, J.
publication-date=1989 Dec 15
year=1989
title=Voyager 2 at Neptune: Imaging Science Results.
volume=246
issue=4936
periodical=Science
pages=1422-1449
doi = 10.1126/science.246.4936.1422
*Citation
id = PMID:17812889
url= http://www.ncbi.nlm.nih.gov/pubmed/17812889
last=Smith
first=B. A.
last2=Soderblom
first2=L. A.
last3=Beebe
first3=R. F.
last4=Bliss
first4=D.
last5=Boyce
first5=J. M.
last6=Brahic
first6=A.
last7=Briggs
first7=G. A.
last8=Brown
first8=R. H.
last9=Collins, S. A.; Cook, A. F. 2nd; Croft, S. K.; Cuzzi, J. N.; Danielson, G. E.; Davies, M. E.; Dowling, T. E.; Godfrey, D.; Hansen, C. J.; Harris, C.; Hunt, G. E.; Ingersoll, A. P.; Johnson, T. V.; Krauss, R. J.; Masursky, H.; Morrison, D.; Owen, T.; Plescia, J. B.; Pollack, J. B.; Porco, C. C.; Rages, K.; Sagan, C.; Shoemaker, E. M.; Sromovsky, L. A.; Stoker, C.; Strom, R. G.; Suomi, V. E.; Synnott, S. P.; Terrile, R. J.; Thomas, P.; Thompson, W. R.; Veverka, J.
publication-date=1986 Jul 4
year=1986
title=Voyager 2 in the Uranian System: Imaging Science Results.
volume=233
issue=4759
periodical=
pages=43-64
doi = 10.1126/science.233.4759.43
*Citation
id = PMID:17731183
url= http://www.ncbi.nlm.nih.gov/pubmed/17731183
last=Cook
first=A. F.
last2=Shoemaker
first2=E. M.
last3=Smith
first3=B. A.
last4=Danielson
first4=G. E.
last5=Johnson
first5=T. V.
last6=Synnott
first6=S. P.
publication-date=1981 Mar 27
year=1981
title=Volcanic Origin of the Eruptive Plumes on Io.
volume=211
issue=4489
periodical=Science
pages=1419-1422
doi = 10.1126/science.211.4489.1419
*Citation
id = PMID:17733910
url= http://www.ncbi.nlm.nih.gov/pubmed/17733910
last=Smith
first=B. A.
last2=Soderblom
first2=L. A.
last3=Beebe
first3=R. F.
last4=Boyce
first4=J. M.
last5=Briggs
first5=G. A.
last6=Carr
first6=M. H.
last7=Collins
first7=S. A.
last8=Cook
first8=A. F. 2nd
last9=Danielson, G. E.; Davies, M. E.; Hunt, G. E.; Ingersoll, A.; Johnson, T. V.; Masursky, H.; McCauley, J.; Morrison, D.; Owen, T.; Sagan, C.; Shoemaker, E. M.; Strom, R.; Suomi, V. E.; Veverka, J.
publication-date=1979 Nov 23
year=1979
title=The Galilean Satellites and Jupiter: Voyager 2 Imaging Science Results.
volume=206
issue=4421
periodical=Science
pages=927-950
doi = 10.1126/science.206.4421.927
*Citation
id = PMID:17800430
url= http://www.ncbi.nlm.nih.gov/pubmed/17800430
last=Smith
first=B. A.
last2=Soderblom
first2=L. A.
last3=Johnson
first3=T. V.
last4=Ingersoll
first4=A. P.
authorlink4=Andrew P. Ingersoll
last5=Collins
first5=S. A.
last6=Shoemaker
first6=E. M.
last7=Hunt
first7=G. E.
last8=Masursky
first8=H.
last9=Carr, M. H.; Davies, M. E.; Cook, A. F. 2nd; Boyce, J.; Danielson, G. E.; Owen, T.; Sagan, C.; Beebe, R. F.; Veverka, J.; Strom, R. G.; McCauley, J. F.; Morrison, D.; Briggs, G. A.; Suomi, V. E.
publication-date=1979 Jun 1
year=1979
title=The Jupiter System Through the Eyes of Voyager 1.
volume=204
issue=4396
periodical=
pages=951-972
doi = 10.1126/science.204.4396.951
*Citation
id = PMID:17781449
url= http://www.ncbi.nlm.nih.gov/pubmed/17781449
last=Shoemaker
first=E. M.
last2=Hait
first2=M. H.
last3=Swann
first3=G. A.
last4=Schleicher
first4=D. L.
last5=Dahlem
first5=D. H.
last6=Schaber
first6=G. G.
last7=Sutton
first7=R. L.
publication-date=1970 Jan 30
year=1970
title=Lunar Regolith at Tranquillity Base.
volume=167
issue=3918
periodical=
pages=452-455
doi = 10.1126/science.167.3918.452
*Citation
id = PMID:17732959
url= http://www.ncbi.nlm.nih.gov/pubmed/17732959
last=Shoemaker
first=E. M.
last2=Batson
first2=R. M.
last3=Holt
first3=H. E.
last4=Morris
first4=E. C.
last5=Rennilson
first5=J. J.
last6=Whitaker
first6=E. A.
publication-date=1967 Nov 3
year=1967
title=Surveyor V: Television Pictures.
volume=158
issue=3801
periodical=Science
pages=642-652
doi = 10.1126/science.158.3801.642
*Citation
id = PMID:17732958
url= http://www.ncbi.nlm.nih.gov/pubmed/17732958
last=Gault
first=D. E.
last2=Adams
first2=J. B.
last3=Collins
first3=R. J.
last4=Green
first4=J.
last5=Kuiper
first5=G. P.
authorlink2=Gerald P. Kuiper
last6=Mazursky
first6=H.
last7=O'Keefe
first7=J. A.
last8=Phinney
first8=R. A.
last9=Shoemaker
first9=E. M.
publication-date=1967 Nov 3
year=1967
title=Surveyor V: Discussion of Chemical Analysis.
volume=158
issue=3801
periodical=Science
pages=641-642
doi = 10.1126/science.158.3801.641
*Citation
id = PMID:17748937
url= http://www.ncbi.nlm.nih.gov/pubmed/17748937
last=Chao
first=E. C. T.
last2=Shoemaker
first2=E. M.
last3=Madsen
first3=B. M.
publication-date=1960 Jul 22
year=1960
title=First Natural Occurrence of Coesite.
volume=132
issue=3421
periodical=Science
pages=220-222
doi = 10.1126/science.132.3421.220

References

External links

*"Deadly Impact: Deadly Impact" National Geographic videos
* [http://astrogeology.usgs.gov/About/People/GeneShoemaker/ USGS page about Gene Shoemaker]
* [http://www.jpl.nasa.gov/sl9/news81.html NASA page about Gene Shoemaker]