If you’ve ever seen a speeding comet or even an image of one, you’ve seen that it has a tail. Scientists have thought that our solar system also has a tail, but they just observed it for the first time.
Interstellar Boundary Explorer
NASA’s Interstellar Boundary Explorer, or IBEX, is a satellite that peers out toward the edge of our solar system. It allowed scientists to actually map out the tail of our heliosphere, that region of space that is influenced by …
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