Editing Planetary core (section)

=== Moon's core ===
The [[internal structure of the Moon]] was characterized in 1974 using seismic data collected by the [[List of Apollo missions|Apollo missions]] of [[moonquakes]].<ref>{{Cite journal|last1=Nakamura|first1=Yosio|last2=Latham|first2=Gary|last3=Lammlein|first3=David|last4=Ewing|first4=Maurice|last5=Duennebier|first5=Frederick|last6=Dorman|first6=James|date=July 1974|title=Deep lunar interior inferred from recent seismic data|journal=Geophysical Research Letters|volume=1|issue=3|pages=137–140|doi=10.1029/gl001i003p00137|issn=0094-8276|bibcode=1974GeoRL...1..137N}}</ref> The Moon's core has a radius of 300&nbsp;km.<ref>{{Cite journal|last1=Bussey|first1=Ben|last2=Gillis|first2=Jeffrey J.|last3=Peterson|first3=Chris|last4=Hawke|first4=B. Ray|last5=Tompkins|first5=Stephanie|last6=McCallum|first6=I. Stewart|last7=Shearer|first7=Charles K.|last8=Neal|first8=Clive R.|last9=Righter|first9=Kevin|s2cid=130734866|date=2006-01-01|title=The Constitution and Structure of the Lunar Interior|journal=Reviews in Mineralogy and Geochemistry|volume=60|issue=1|pages=221–364|doi=10.2138/rmg.2006.60.3|issn=1529-6466|bibcode=2006RvMG...60..221W}}</ref> The Moon's iron core has a liquid outer layer that makes up 60% of the volume of the core, with a solid inner core.<ref>{{Cite journal|last1=Weber|first1=R. C.|last2=Lin|first2=P.-Y.|last3=Garnero|first3=E. J.|last4=Williams|first4=Q.|last5=Lognonne|first5=P.|date=2011-01-21|title=Seismic Detection of the Lunar Core|journal=Science|volume=331|issue=6015|pages=309–312|doi=10.1126/science.1199375|pmid=21212323|issn=0036-8075|bibcode=2011Sci...331..309W|s2cid=206530647|url=https://zenodo.org/record/1230912}}</ref>