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  Up close with giant space rocksMar 19, 2019 10:21 PM PDT | url
 
Added 1 new A* page:A couple new BBC articles on findings from space probes visiting giant rocky things in space!
 
New Horizons: Ultima Thule 'a time machine' to early Solar System - Scientists now think that this "giant snowman" probably formed from a gentle collapse of a particle cloud, with the final two lobes bumping together at no more than 2-3 m/s, "about the speed you might run into a wall." They're still working on figuring out why one of the lobes, Ultima, is really flat, but they've got some theories.
 
Hayabusa2: Asteroid mission exploring a 'rubble pile' - The Japanese probe has found asteroid Ryugu is about 50% empty space, and likely "formed when rocks were blasted off a bigger asteroid and came back together again." And as a bonus, there are also some findings mentioned about asteroid Bennu, being explored by NASA's OSIRIS-REx ("Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer" : P) probe.
 
 
 
 
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