Contents

19 April 2019
Vol 364, Issue 6437

About The Cover

Cover image expansion

COVER The near-Earth carbonaceous asteroid 162173 Ryugu, seen from the Hayabusa2 spacecraft. This super-resolution image was produced by combining seven separate exposures. The view has been rotated; south is at the top. Hayabusa2 measurements of Ryugu's shape, density, surface features, and composition indicate that it probably formed from reaccumulating rubble ejected from a larger asteroid as the result of an impact. See pages 230, 252, 268, and 272.
Image: JAXA/U. Tokyo/Kochi U./Rikkyo U./Nagoya U./Chiba Inst. Tech./Meiji U./U. Aizu/AIST