The Hudson River is basically Scientific American's backyard, so when we heard the space shuttle Enterprise was heading up the river to its final resting place aboard the USS Intrepid on Manhattan's west flank, we couldn't resist firing up the video camera and grabbing a few shots. Although Enterprise never made it to Earth orbit, it is a bit odd to see Space Age technology ferried on a craft as low-tech as a barge. On the other hand, perhaps that end is fitting, because boats were the vehicle of choice for much of humanity's early explorations.