Early formation of the Moon 4.51 billion years ago Barboni, Melanie ; Boehnke, Patrick ; Keller, Brenhin ; Kohl, Issaku E. ; Schoene, Blair ; Young, Edward D. ; McKeegan, Kevin D. Abstract Publication: Science Advances Pub Date: January 2017 DOI: 10.1126/sciadv.1602365 Bibcode: 2017SciA....3E2365B