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SUMMARY:Comets as Solar Explorers  - Professor Monica Grady
DTSTART:20150304T210000Z
DTEND:20150304T220000Z
UID:TALK58281@talks.cam.ac.uk
CONTACT:Patrick Szmucer
DESCRIPTION:"Professor Monica Grady is a leading British space scientist\,
  primarily known for her work on meteorites. She is currently Professor of
  Planetary and Space Science at the Open University. She was part of the t
 eam that developed the Ptolemy instrument on Philae\, which seeks to explo
 re the relationship between water ice on comets and the Earth's oceans and
  to study the nature of organic material on the comet and thus investigate
  the relationship with similar materials from other Solar System bodies. T
 he instrument combines gas chromatography and mass spectrometry to measure
  the isotope ratios of Hydrogen\, Carbon\, Nitrogen and Oxygen. The ratios
  of heavy to light isotopes (e.g. 18O/16O in H2O) act as fingerprints to d
 etermine where a sample of water came from."
LOCATION:Nihon Room\, Pembroke College
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