Traveling at high heat, the sphere on the right endured more spin than the one on the left, as shown by the metal beads on its ends. Those with odd shapes may have held a bead or bubble that split the sphere in half during flight, or they may have experienced unusual orientation and air resistance. Glass-only spheres are non-magnetic and are left behind.Įven in the one-of-a-kind world of micrometeorites, there are rare beauties. They pick up glass spheres when they are magnetic, with metal beads. Urban micrometeorite hunters use powerful magnets when they search. The Bell Museum thanks Scott Peterson, father, veteran, engineering student, and community scientist, as well as these fellow travelers:įor review, research, and imagery, Anette von der Handt, Electron Microprobe Lab, University of Minnesota John Larsen, Project Stardust Jan Braly Kihle, Institute for Energy Technology Martin Suttle, Earth Sciences, University of Pisaįor supporting research, Matthew Genge, Earth Science & Engineering, Imperial College London Susan Taylor, Cold Regions Research and Engineering Laboratoryįor graphic design, Joe O’Leary / Veto Design Minnesotan Scott Peterson shares his finds.
#Project stardust how to
Experts assumed that it would be impossible to find micrometeorites in inhabited areas, where natural and human-made debris would complicate the search.Īn international group of community scientists are learning how to identify micrometeorites in cities and close to home. Until recently, scientists searched for them only in remote places, such as the Antarctic, where pristine conditions ensured that these mineral specks really came from space. Micrometeorites are some of the oldest matter that exists.
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