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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20121025T103000
DTEND;TZID=Atlantic/Canary:20121025T113000
UID:iactalks-412
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/412
CREATED:2012-10-25T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Astronomy by microscope
DESCRIPTION:Astronomy by microscope\nProf. Monica M. Grady\n\nTraditionally
 , astronomers study stars and planets by telescope. But  we can also learn
  about them by using a microscope – through studying  meteorites. Fr
 om meteorites, we can learn about the processes and  materials that shaped
  the Solar System and our planet. Tiny grains  within meteorites have come
  from other stars, giving information about  the stellar neighbourhood in 
 which the Sun was born.\nMeteorites  are fragments of ancient material, na
 tural objects that survive their  fall to Earth from space. Some are metal
 lic, but most are made of stone.  They are the oldest objects that we have
  for study. Almost all  meteorites are fragments from asteroids, and were 
 formed at the birth of  the Solar System, approximately 4570 million years
  ago. They show a  compositional variation that spans a whole range of pla
 netary materials,  from completely unmelted and unfractionated stony chond
 rites to highly  fractionated and differentiated iron meteorites. Meteorit
 es, and  components within them, carry records of all stages of Solar Syst
 em  history. There are also meteorites from the Moon and from Mars that gi
 ve  us insights to how these bodies have formed and evolved.\nIn her  lect
 ure, Monica will describe how the microscope is another tool that  can be 
 employed to trace stellar and planetary processes.
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