Huge asteroid Vesta is actually an ancient protoplanet
Huge asteroid Vesta is actually an ancient protoplanet
(NASA's Dawn probe shows it is left over from the solar
system's early days) ABC News, May 10, 2012
http://www.msnbc.msn.com/id/47376079/ns/technology_and_science-space/
Vesta confirmed as venerable planet progenitor, Nature
News, May 10, 2012
http://blogs.nature.com/news/2012/05/vesta-confirmed-as-venerable-planet-progenitor.html
Asteroid collision that spawned Vesta's asteroid family
occurred more recently ..., Phys.Org, May 10, 2012'
http://phys.org/news/2012-05-asteroid-collision-spawned-vesta-family.html
Dawn Reveals Asteroid Vesta's Role in Solar System History
SpaceRef, May 12, 2012,
http://www.spaceref.com/news/viewpr.html?pid=37013
Best wishes,
Paul H.