Spotlight on Smithsonian Science, 3 March 2006

Evans, David L.

dc.contributor.author	Evans, David L.
dc.contributor.editor	Mellendick, Theresa
dc.contributor.other	Erwin, Douglas, H.
dc.date.accessioned	2006-04-06T16:07:09Z	en_US
dc.date.accessioned	2006-07-11T20:19:30Z
dc.date.available	2006-04-06T16:07:09Z	en_US
dc.date.available	2006-07-11T20:19:30Z
dc.date.issued	2006-03-03
dc.identifier.citation	Spotlight on Science, Vol. 4, no. 5, 3 March 2006
dc.identifier.uri	http://www.smithsonian.org/research/spotlight/04_05.html
dc.identifier.uri	http://hdl.handle.net/10088/207
dc.description	In this edition of Spotlight we study the past from fossils, here on Earth, and ancient geologic features on Mars. Douglas Erwin, from the Museum of Natural History provides a synthesis of the latest scholarship on the 250 million year old Permian extinction; the largest of all extinction events which snuffed out 95% of all species. Erwin discusses the imprint of this event on the fossil record at sites around the world. Scott Wing, also from Natural History, provides insight on the Paleocene-Eocene Thermal Maximum, a mere stone's throw into past at 55 million year ago. This global warming event drastically altered the home range of plants while lowering sea level, and thus opening the Arctic land bridge to a parade of large mammal species which then entered the Americas. And finally, we travel via remote satellite imaging, to Mars, where the record of a recurrent Earthlike environment is written on the geological face of the planet. Smithsonian scientists Ross Irwin and Bob Craddock infer sudden changes in the Red planet's past from images transmitted back to Earth by the Mars Global Surveyor and Mars Odyssey orbiters. From the Earth to Mars, whether via the printed page or podcast, we once again travel far and wide to bring you the latest in Smithsonian science.
dc.description	Podcast dated March 4, 2006, Web site dated March 3, 2006, PDF also includes (possibly in error) the date from volume 4, no. 3, 3 February 2006.
dc.description.abstract	Introduction from Dr. David Evans, Smithsonian Under Secretary for Science -- Smithsonian Scientist Deciphers Extinction's Greatest One-Two Punch -- Study of Global Warming 55 Million Years Ago Helps Illuminate the Future -- Mars Orbiters Provide Clues to an Earthlike Past for the Red Planet
dc.format.extent	13 min., 08 sec.
dc.format.extent	15084 bytes
dc.format.extent	1952 bytes
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dc.format.extent	12702343 bytes
dc.format.mimetype	text/plain
dc.format.mimetype	text/plain
dc.format.mimetype	application/pdf
dc.format.mimetype	application/octet-stream
dc.language.iso	en
dc.publisher	Smithsonian Institution. Office of the Under Secretary for Science.
dc.subject	Extinction
dc.subject	Geology, Stratigraphic -- Permian
dc.subject	Global warming
dc.subject	Paleoclimatology
dc.subject	Mars (Planet)
dc.title	Spotlight on Smithsonian Science, 3 March 2006
dc.title.alternative	Vol. 4, no. 5, 3 March 2006
dc.type	Recording, oral