Publication Date:
2019-07-13
Description:
The Stardust Interstellar Dust Collection tray provides the first opportunity for the direct laboratory-based measurement of contemporary interstellar dust. The total exposed surface of the tray was approximately 0.1 square meters, including 153 square centimeters of Al foil in addition to the silica aerogel tiles that are the primary collection medium. Preliminary examination of aerogel tiles has already revealed 16 tracks from particle impacts with an orientation consistent with an interstellar origin, and to date four of the particles associated with these tracks have a composition consistent with an extraterrestrial origin. Tentative identification of impact craters on three foil samples was also reported previously. Here we present the definitive identification of 20 impact craters on five foils.
Keywords:
Lunar and Planetary Science and Exploration
Type:
JSC-CN-22747
,
42nd Lunar and Planetary Science Conference; Mar 07, 2011 - Mar 11, 2011; The Woodsland, TX; United States
Format:
application/pdf
Permalink