Interplanetary dust particles: observation and harvesting in the Antarctic [65], reactions in the Earth's atmosphere [66,67]; origin of micrometeorites and meteorites [11]; interstellar grains in meteorites [79]; laboratory comparisons of organic materials to interstellar dust and meteorites [57,83,84,95]; laboratory simulation of microdiamonds in space [22]; interstellar and circumstellar grains in meteorites [3,4,43]; formation of iron meteorites [30]; formation of oxides in carbonaceous chondrites [35].