It was a great story. But then Mariner and Viking sent back their photos, and everything changed. Our knowledge of Mars expanded by magnitudes, we literally knew millions of times more about this planet than we had before. And there before us flew a new world, a world unsuspected.

It seemed, however, to be a world without life. People searched for signs of past or present Martian life, anything from microbes to the doomed canal-builders, or even alien visitors. As you know, no evidence for any of these has ever been found. And so stories have naturally blossomed to fill the gap, just as in Lowell’s time, or in Homer’s, or in the caves or on the savannah— stories of microfossils wrecked by our bio-organisms, of ruins found in dust storms and then lost forever, of Big Man and all his adventures, of the elusive little red people, always glimpsed out of the corner of the eye. And all of these tales are told in an attempt to give Mars life, or to bring it to life. Because we are still those animals who survived the Ice Age, and looked up at the night sky in wonder, and told stories. And Mars has never ceased to be what it was to us from our very beginning— a great sign, a great symbol, a great power.

And so we came here. It had been a power; now it became a place.

“And so we came here. But what they didn’t realize was that by the time we got to Mars, we would be so changed by the voyage out that nothing we had been told to do mattered anymore. It wasn’t like submarining or settling the Wild West— it was an entirely new experience and as the flight of the Ares went on, the Earth finally became so distant that it was nothing but a blue star among all the others, its voices so delayed that they seemed to come from a previous century. We were on our own; and so we became fundamentally different beings.”