Resumen de To boldly look
There have already been a handful of small-scale searches, but now three teams of astronomers are setting out to scan a much greater volume of space. Two groups hope to see the shadows of alien industry in fluctuating starlight and the third, like archaeologists sifting through a midden heap on Earth, is hunting for alien waste. What they're after is something rather grander than flint arrowheads or shards of pottery. It might seem crazy to even entertain the notion of such stupendous celestial edifices, but there is a simple rationale. Unless tool-users are always doomed to destroy themselves, any civilization out there is likely to be far older and far more advanced. Here, Battersby reports how these three teams of astronomers are taking a radically different approach to finding extraterrestrial life.
