Tau Zero

by Poul Anderson

It loomed behind her, around her, where she circled Earth. Staring away from sun and planet, you saw a crystal darkness huger than you dared comprehend. It did not appear totally black; there light reflections within your eyeballs, if nowhere else; but it was the final night, that our kindly sky holds from us. The stars thronged it, unwinking, their brilliance winter-cold. Those sufficiently luminous to be seen from the ground showed their colors clear in space: steel-blue Vega, golden Capella, ember of Betelgeuse. And if you were not trained, the lesser members of the galaxy that had become visible were so many as to drown the familiar constellations. The night was wild with suns. And the Milky Way belted heaven with ice and silver; and the Magellanic Clouds were not vague shimmers but roiling and glowing; and the Andromeda galaxy gleamed sharp across more than a million light-years; and you felt your soul drowning in those depths and hastily pulled your vision back to the snug cabin that held you.

The linked spacecraft were coming into another dawn. Light soared over Earth’s immense horizon, breaking in a thousand colors from maple-leaf scarlet to peacock blue. Momentarily a wing of zodiacal radiance could be seen, like a halo over the rising fire-disk. Beyond were the stars and a crescent moon. Below was the planet, agleam with her oceans, her clouds where rain and thunder walked, her green-brown-snowy continents and jewel-box cities. You saw, you felt, that this world lived.

For indeed, any planet is a world, infinitely varied, infinitely secret.