Editing 1947 in science (section)

==Astronomy and space exploration==
* February 12 – [[Sikhote-Alin meteorite]] falls to Earth in [[Siberia]], the largest [[iron meteorite]] known to have impacted.<ref>{{cite book|first=O. Richard|last=Orton|title=Rocks From Space|publisher=Mountain Press Publishing|location=Missoula, Montana|edition=2nd|year=1998|page=103|isbn=0-87842-373-7}}</ref>
* February 20 – The first living things sent into space (and returned) are [[Drosophila melanogaster|fruit flies]], accompanied by rye and cotton seeds, aboard a [[V-2]] rocket launched by the [[United States Army Ordnance Corps|U.S. Army Ordnance Corps]] which reaches an altitude of 68 miles (109&nbsp;km).<ref>{{cite web|url=http://www.postwarv2.com/usa/ws/uars/uars20.html|title=Upper Air Rocket Summary V-2 No. 20| accessdate=11 May 2011 <!--DASHBot-->}}</ref><ref>{{cite web|url=https://history.nasa.gov/afspbio/part1.htm|title=The Beginnings of Research in Space Biology at the Air Force Missile Development Center, 1946-1952|accessdate=2008-01-31|work=History of Research in Space Biology and Biodynamics|publisher=[[NASA]]|archiveurl=https://web.archive.org/web/20080125044753/https://history.nasa.gov/afspbio/part1.htm|archivedate=25 January 2008|url-status=live}}</ref><ref>{{cite web|url=http://www.wsmr.army.mil/pao/FactSheets/V2/v-2tab.htm|title=V-2 Firing Tables|accessdate=2008-01-31|publisher=[[White Sands Missile Range]]|archiveurl=https://web.archive.org/web/20080125175018/http://www.wsmr.army.mil/pao/FactSheets/V2/v-2tab.htm|archivedate=2008-01-25}}</ref>
* [[Bok globule]]s are reported.<ref>{{cite journal|last1=Bok|first1=Bart J.|authorlink=Bart Bok|last2=Reilly|first2=Edith F.|title=Small Dark Nebulae|journal=[[The Astrophysical Journal]]|volume=105|page=255|date=March 1947|bibcode = 1947ApJ...105..255B|doi=10.1086/144901}}</ref>