What's your favorite space probe up to this month?

Since October of 2010, "What's Up In the Solar System" has provided monthly updates on the various locations of humanity's many space probes. The picture above is for September 2013. It's a nice reminder of two sort of mind blowing facts. First, we have a LOT more probes out there than you probably remember off the top of your head, all collecting data and representing on behalf of this planet. Second, almost half those probes are clustered around two places — the Earth and Mars. We have come so far. We still have so far to go.

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