Particles give absolute age of asteroid Itokawa
Monday, August 27, 2018 - 09:50
in Astronomy & Space
Scientists have closely examined particles collected from the asteroid Itokawa by the spacecraft Hayabusa, finding that the parent body of Itokawa was formed about 4.6 billion years ago when the solar system was born and that it was destroyed by a collision with another asteroid about 1.5 billion years ago.