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1950 in science
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==Astronomy and space sciences== * [[Netherlands|Dutch]] astronomer [[Jan Oort]] postulates the existence of an orbiting cloud of [[planet]]s (the [[Oort cloud]]) at the outermost edge of the [[Solar System]].<ref>{{cite journal|first=Jan|last=Oort|title=The structure of the cloud of comets surrounding the Solar System and a hypothesis concerning its origin|journal=[[Bulletin of the Astronomical Institutes of the Netherlands]]|volume=11|pages=91β110|year=1950|bibcode=1950BAN....11...91O}}</ref> * [[Enrico Fermi]] discusses the [[Fermi paradox]].<ref>{{cite web|url=http://www.fas.org/sgp/othergov/doe/lanl/la-10311-ms.pdf|title="Where is everybody?": An account of Fermi's question|first=Eric M.|last=Jones|series=Los Alamos technical report|date=March 1985}}</ref>
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