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SUMMARY:From Mars to the Multiverse - Prof Lord Martin Rees
DTSTART:20200220T180000Z
DTEND:20200220T193000Z
UID:TALK136669@talks.cam.ac.uk
CONTACT:Trinity College Science Society
DESCRIPTION:Come to the Old Combination Room on 20th of February at 6 pm t
 o hear from Professor Lord Martin Rees\, the Astronomer Royal\, former Pre
 sident of the Royal Society\, and a former Master of Trinity College!\n\nL
 ord Martin Rees is a leading cosmologist and astrophysicist as well as a s
 enior figure in UK science. He has conducted influential theoretical work 
 on subjects as diverse as black hole formation and extragalactic radio sou
 rces\, and provided key evidence to contradict the Steady State theory of 
 the evolution of the Universe.\n\nThis free talk will start at 18:15 with 
 refreshments available from 18:00. To reach Old Combination Room\, enter v
 ia Great Gate\, go diagonally across the court\, into the hall and upstair
 s. You can find our banner near the entrance.\n\n"Powerful instruments had
  led to astonishing progress in tracing theemergence of atoms\, galaxies\,
  stars and planets from a mysterious'beginning' nearly 14 billion years ag
 o. Unmanned spacecraft have visitedthe other planets of our Solar System (
 and some of their moons)\, beamingback pictures of varied and distinctive 
 worlds. An exciting development inthe last two decades has been the realis
 ation that many other stars areorbited by retinues of planets -- some rese
 mbling our Earth (and capable ofharboring life).\n\nLooking further afield
 \, observers can probe galaxies and the massive backholes at their centres
  and can check models of their evolution by detectingobjects all the way b
 ack to an epoch only a billion years after the 'bigbang'.Indeed we can tra
 ce pre-galactic history with some confidence back toa nanosecond after the
  'big bang'.\n\nBut the key parameters of our expanding universe -- the ex
 pansionrate\, the geometry and the content -- were established far earlier
  still\,when the physics is still conjectural but is being constrained\, e
 speciallyby precision measurements of the microwave background. These adva
 nces posenew questions: What does the long-range future hold? Should we be
  surprisedthat the physical laws permitted the emergence of complexity? Ar
 e there other 'big bangs'?"
LOCATION:Old Combination Room (OCR)\, Trinity College
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