curprev17:2717:27, 1 October 2015 Kheidertalkcontribs 5,018 bytes+347 16 Psyche is likely the survivor of a violent hit-and-run with another object that stripped off the outer, rocky layers of a protoplanet.<ref name=NASA15-196>{{cite web|url=http://www.nasa.gov/press-release/nasa-selects-investigations-for-future-key-pundo
curprev04:1504:15, 24 July 2011 Exobiologisttalkcontribs m4,221 bytes−23 Superfluous description. One km entities of that density have little gravity. A giant impact would better describe two black holes colliding.undo
curprev23:5523:55, 15 July 2011 Kheidertalkcontribs 4,244 bytes+164 *[http://tech.groups.yahoo.com/group/mpml/message/25780 Thread on the definition of a protoplanet] (Minor Planet Mailing List : Jul 15, 2011)undo
curprev09:0009:00, 8 July 2011 JorisvStalkcontribs 4,078 bytes+37 ce + "moon-sized ... ... form out of km-sized planetesimals" is problematic (there are many km-sized moons) and not necessary to say (this way) anywayundo