
Rocks on Ryugu, a “rubble pile” near-Earth asteroid recently visited by Japan’s Hayabusa2 spacecraft, appear to have lost much of their water before they came together to form the asteroid, new research suggests.
PROVIDENCE, R.I. (Brown University PR) — Last month, Japan’s Hayabusa2 mission brought home a cache of rocks collected from a near-Earth asteroid called Ryugu. While analysis of those returned samples is just getting underway, researchers are using data from the spacecraft’s other instruments to reveal new details about the asteroid’s past.
(more…)