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UID:event-35676-date-78407@noje.se
DTSTAMP:20261111T103451Z
DTSTART:20261210T163000Z
DTEND:20261210T180000Z
SUMMARY:Stjernestøv: Beskeder fra universets barndom
LOCATION:Universitetsbiblioteket i Fiolstræde\, Fiolstræde 1\, 1171 Kø
 benhavn
DESCRIPTION:Our solar system could be one of the first in the universe. A
 strophysicist Anja C. Andersen once thought so. Planets need dust\, and a
 ccording to the explanation at the time\, it was produced mainly by red g
 iant stars at the end of their lives. It therefore took billions of years
  for our universe to have the building materials needed to form planets. 
 Her own studies of stardust in meteorites supported that explanation. But
  when a research paper by a Japanese researcher in Wales showed large amo
 unts of dust around the supernova 1987A\, she and two colleagues reacted 
 with scepticism. They spent a week looking for errors in the paper. But t
 hey found none.\n\nThat was because the Herschel space telescope had dete
 cted the glow of cold dust\, which earlier observations had missed. And i
 n a distant\, young galaxy\, there was dust from before the red giant sta
 rs could have had time to produce it. So the universe had found other way
 s to obtain building materials. Could this mean that planets formed much 
 earlier?\n\nListen to Anja C. Andersen talk about the discoveries that ma
 de her change her explanation\, and about the questions that remain open:
  How early could the universe form planets – and perhaps provide condit
 ions for life? Were the first planets made of materials different from th
 ose found on Earth? And why does the stardust in her meteorites still tel
 l a somewhat different story from the observations made by telescopes?\n\
 nPhoto: Simon Klein Knudsen\n\nAbout the researcher\n\nAnja C. Andersen
 …
URL:https://www.copenhagen.com/events/stjernestov-beskeder-fra-universets
 -barndom-035676
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