• atan@lemmy.ml
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    1 year ago

    My understanding is that metallic spherules from iron meteorites would be expected to include nickel. The absence of nickel in iron containing spherules like these would usually indicate a non-natural source i.e. human technology. The speed and trajectory of the meteor which may be the source, however, indicates an interstellar origin.

    I believe that initial analyses of these spherules has revealed an absence of nickel.

    The spherules were recovered from areas in the expected debris zone; none were recovered from the surrounding, control zones.