| Literature DB >> 31439797 |
R Jaumann1,2, N Schmitz3, T-M Ho4, S E Schröder3, K A Otto3, K Stephan3, S Elgner3, K Krohn3, F Preusker3, F Scholten3, J Biele5, S Ulamec5, C Krause5, S Sugita6, K-D Matz3, T Roatsch3, R Parekh3,2, S Mottola3, M Grott3, P Michel7, F Trauthan3, A Koncz3, H Michaelis3, C Lange4, J T Grundmann4, M Maibaum5, K Sasaki4, F Wolff8, J Reill9, A Moussi-Soffys10, L Lorda10, W Neumann3, J-B Vincent3, R Wagner3, J-P Bibring11, S Kameda12, H Yano13, S Watanabe13,14, M Yoshikawa13, Y Tsuda13, T Okada13, T Yoshimitsu13, Y Mimasu13, T Saiki13, H Yabuta15, H Rauer3,2, R Honda16, T Morota17, Y Yokota13, T Kouyama18.
Abstract
The near-Earth asteroid (162173) Ryugu is a 900-m-diameter dark object expected to contain primordial material from the solar nebula. The Mobile Asteroid Surface Scout (MASCOT) landed on Ryugu's surface on 3 October 2018. We present images from the MASCOT camera (MASCam) taken during the descent and while on the surface. The surface is covered by decimeter- to meter-sized rocks, with no deposits of fine-grained material. Rocks appear either bright, with smooth faces and sharp edges, or dark, with a cauliflower-like, crumbly surface. Close-up images of a rock of the latter type reveal a dark matrix with small, bright, spectrally different inclusions, implying that it did not experience extensive aqueous alteration. The inclusions appear similar to those in carbonaceous chondrite meteorites.Year: 2019 PMID： 31439797 DOI： 10.1126/science.aaw8627
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728