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  • Solar System's Tail Observed For the First Time [VIDEOs]

    Though previously unobserved, scientists long assumed that, just like any other object moving through a medium, the solar system had a tail. Not until NASA's Interstellar Boundary Explorer, or IBEX, however, were scientists able to perceive it and map its boundaries, which, it turns out, resembles something like a four-leaf clover.