Meteors that have crashed to Earth have long been regarded as relics of the early solar system. These craggy chunks of metal and rock are studded with chondrules — tiny, glassy, spherical grains that were once molten droplets. Scientists have thought that chondrules represent early kernels of terrestrial planets: As the solar system started to coalesce, these molten droplets collided with bits of gas and dust to form larger planetary precursors. An artist’s rendering of a protoplanetary impact.
Read more about New Twist On Planetary Origins: Study Finds Meteorites Were Byproducts Of Planetary Formation, Not Building Blocks.
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