William Marchant

TL;DR: Using synchrotron-based X-ray diffraction measurements, the authors identified crystalline material in two particles of extraterrestrial origin extracted from the Stardust Interstellar Dust Collector.

TL;DR: The NASA Stardust spacecraft exposed an aerogel collector to the interstellar dust passing through the solar system as discussed by the authors, and a nearby surface feature, consistent with the impact of a weak, high-speed particle having an approximately chondritic (CI) element abundance pattern was identified by Stardust@Home and extracted for analyses in picokeystones.

TL;DR: In this article, the elemental composition of eight candidate impact features extracted from the Stardust Interstellar Dust Collector (SIDC) was analyzed by synchrotron X-ray fluorescence microscopy.

TL;DR: In this article, a hard X-ray, quantitative, fluorescence elemental imaging was performed on the ID22NI and ID22 microprobe beam lines of the European Synchrotron Research facility (ESRF) in Grenoble, France, on eight interstellar candidate impact features in the framework of the NASA Stardust Interstellar Preliminary Examination (ISPE).

TL;DR: In this paper, the authors proposed a contract NNN06AA01C (Task NNN10AA08T) with the U.S. National Aeronautics and Space Administration.