The scientific community has expressed strong interest to re-fly Stardust-like missions with improved instrumentation. We propose a new mission concept, SARIM, that collects interstellar and interplanetary dust particles and returns them to Earth. SARIM is optimised for the collection and discrimination of interstellar dust grains. Improved active dust collectors on-board allow us to perform in-situ determination of individual dust impacts and their impact location. This will provide important constraints for subsequent laboratory analysis. The SARIM spacecraft will be placed at the L2 libration point of the Sun–Earth system, outside the Earth’s debris belts and inside the solar-wind charging environment. SARIM is three-axes stabilised and collects interstellar grains between July and October when the relative encounter speeds with interstellar dust grains are lowest (4 to 20 km/s). During a 3-year dust collection period several hundred interstellar and several thousand interplanetary grains will be collected by a total sensitive area of 1 m2. At the end of the collection phase seven collector modules are stored and sealed in a MIRKA-type sample return capsule. SARIM will return the capsule containing the stardust to Earth to allow for an extraction and investigation of interstellar samples by latest laboratory technologies.
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机译：科学界已表达了强烈的兴趣，希望借助改进的仪器重新执行类似“星尘”般的飞行任务。我们提出了一个新的任务概念SARIM，它可以收集星际和行星际的尘埃颗粒并将其返回地球。 SARIM针对星际尘埃颗粒的收集和识别进行了优化。机载上改进的有源集尘器使我们能够对单个粉尘撞击及其撞击位置进行现场确定。这将为后续的实验室分析提供重要的限制。 SARIM航天器将放置在太阳—地球系统的L2解放点，地球碎片带之外和太阳风充电环境内部。 SARIM是三轴稳定的，在7月至10月之间收集星际谷物，此时与星际尘埃颗粒的相对遇到速度最低（4至20 km / s）。在3年的集尘期中，将以总敏感面积1 m 2 收集数百个星际和数千个星际谷物。在收集阶段结束时，将七个收集器模块存储并密封在MIRKA型样品返回盒中。 SARIM会将装有星尘的太空舱返回地球，以便通过最新的实验室技术提取和研究星际样品。
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