What'sNEW Archives, July-August 2001August 31: Europeans will seek water on Mars. Clues like patterned cracks on the surface suggest that Mars was once wet. Underground water may still be present. "The European Space Agency's Mars Express followed by the Netlanders, led by the French space agency, CNES, will be the first missions capable of prospecting directly for underground water on Mars." Mars Express will carry a ground penetrating radar, called MARSIS, into polar orbit around Mars in 2003. It willl work much like airborne radar that prospects for underground minerals on Earth. The Italian space agency, ASI, is proposing to fly SHARAD on NASA's 2005 orbiter to look for water in the top few hundred metres of crust. And In 2007, Europe will send four small Netlanders to different locations on Mars from where they will sound the Martian interior seismically.
Europe to identify underground water on Mars, ESA, 27 Aug 2001.
ESA Takes The Lead In Prospecting For Water On Mars, UniSci, 31 Aug 2001.
Life on Mars! is the related CA webpage.
August 31:Tagish Lake meteorite may be a D asteroid because it is darker and redder than other carbonaceous chondrites. If so, it is the first example ever recovered.
Rare Canadian Meteorite Tagged as First of Its Kind Found on Earth, by Robin Lloyd, Astrobiology Magazine, 2 Jun 2002.
Comets... is a related CA webpage.
August 27:Jack Farmer before House Subcommiteee on Space and Aeronautics. [Thanks, Marsbugs.]
Advances in our Understanding of Life: Excerpts from the testimony of Jack D. Farmer, SpaceDaily.com, 21 August 2001.
Testimony of Jack D. Farmer: full transcript, SpaceRef.com, 12 July 2001.
August 22:Bioastronomy 2002 Conference, Great Barrier Reef, 8-12 July 2002. [Thanks, CC-Net.]
Bioastronomy 2002: Life Among the Stars, conference homepage.
Sir Fred Hoyle died today. He was 86 years old. He was born in Bingley, Yorkshire, England on June 24, 1915. He received a master's degree from Cambridge in 1939 and was elected Fellow, St. John's College, Cambridge in the same year. In 1958 he rose to become Plumian Professor of Astrophysics and Natural Philosophy. He was a leading contributor in the discovery of how the elements from lithium to iron are synthesized inside stars. In 1997 he was awarded the Crafoord Prize by the the Swedish Academy in recognition of outstanding basic research in fields not covered by the Nobel prize. He leaves his wife Barbara, a son and a daughter, and four granddaughters.
Fred Hoyle Dies at 86; Opposed 'Big Bang' but Named It, The New York Times, 22 August 2001.
Armand Delsemme, "An Argument for the Cometary Origin of the Biosphere" [abstract], v 89 n 5, American Scientist, September-October 2001.
Introduction: More Than Panspermia is a related CA webpage.
Panspermia Asks New Questions, a related CA webpage, lists and explains the different versions of panspermia.
Fungi much older than their oldest fossils? Another molecular analysis finds genes or proteins that appear roughly twice as old as they should according to the fossil record. The analysts, biologists and astrobiologists at Penn State, are inclined to disbelieve the fossil record. "The first fossil land plants and fungi appeared 480 to 460 million years ago (Ma), whereas molecular clock estimates suggest an earlier colonization of land, about 600 Ma. Our protein sequence analyses indicate that green algae and major lineages of fungi were present 1000 Ma and that land plants appeared by 700 Ma." Similar discrepancies have already been observed for several other species, and some scientsts say that the molecular clocks are not reliable. Could the anomaly indicate that genes really are older than their first expression on Earth?
Daniel S. Heckman et al., "Molecular Evidence for the Early Colonization of Land by Fungi and Plants" [abstract], p 1027-1028 v 293, Science, 10 August 2001.
Land Plants' History Rewritten, by Elizabeth Pennisi, ScienceNOW, 9 August 2001.
Metazoan Genes Older Than Metazoa? is a related CA webpage.
August 2:Web article about panspermia. [Thanks, Jim McGee.]
Panspermia: Where Did We Come From?, by Emily Willingham, (originally) hmsbeagle.com, 20 July 2001.
Introduction: More Than Panspermia is a related CA webpage.
July 31:The Astrobiology Conference in San Diego, sponsored by SPIE, included sessions on Mars meteorite ALH84001, water on Mars, the Viking life detection experiments and many other astrobiology-related topics. Some of the highlights of the July 30-31 meeting:
Scientists Say Mars Viking Mission Found Life, by Leonard David, originally: Space.com, 31 July 2001.
USC neuroscientist finds signature of life on Mars in decades-old data, EurekAlert, 27 July 2001.
Do microbes rain down from space?: Reuters, London, 31 July 2001.
Researcher: Mars rock varnish hints of life [Barry DiGregorio's work to be presented at San Diego], by Richard Stenger, CNN.com, 2 July 2001.
Life On Mars! is a related CA webpage.
Fossilized Life Forms in the Murchison Meteorite is a related CA webpage.
An Atmospheric Test... is a related CA webpage.
Twenty-fifth Anniversary of Viking's Landing on Mars.
Happy Anniversary, Viking Lander, by Dr. Tony Phillips, Science@NASA, 20 July 2001.
Mars: Dead or Alive?, by Robert Evans, Astrobiology Magazine, 18 July 2001.
NASA Celebrates 25th Anniversary of Mars Landing, Newsrelease 01-143, NASA HQ, 17 July 2001.
Life On Mars! is the related CA webpage.
A NATO-sponsored Institute on Astrobiology will be held on Crete. Its objective is "to provide a systematic, in-depth, treatment of the new and rapidly developing field of Astrobiology by distinguished lecturers." The website lists Fred Hoyle and at least two Nobel laureates among the lecturers. [Thanks, Richard Hoover, Organizing Committee.]
Perspectives in Astrobiology: NATO Advanced Studies Institute in Chania, Crete, 29 September to 10 October 2001: Proceedings [link], edited by R.B. Hoover, A. Yu Rozanov and R. Paepe, NATO science series Series I: Live and Behavioral Sciences, ISSN 1566-7693; vol. 366.
July 11: A dying star boils the comets around it. This is the best explanation for the huge amount of water vapor seen by the Submillimeter Wave Astronomy Satellite (SWAS) around CW Leonis, located 500 light years from Earth in the direction of the constellation Leo.
July 11:The moon, plate tectonics and life on Earth. "If the moon had not carried away most of the crust, there would be no ocean basins, no land, and no chance for life to evolve on land." [Thanks, Jim Galasyn.]
July 6:NAI comments on SETI in a review article on the web.