News Space Rocky cores form first Newly discovered superEarth systems support the standard model of planet formation By Ron Cowen June 17, 2008 at 11:55 am - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print NANTES, France — Call it the battle of the planet creationists. PLANETARY BEGINNINGS This artist’s illustration shows a swirling protoplanetary disk in which core accretion could happen. P. Rawlings, NASA On one side of the ring stands Doug “Rocky Core” Lin. On the other side stands Alan “Jupiter in a Hurry” Boss.