Time to give SETI a chance
THE thousands of probable worlds discovered in orbit around other stars are making our corner of the universe appear a lot friendlier to life these days.
The Kepler space telescope, which has its eye on 150,000 stars, is beginning to home in on Earth-size planets. Can Earth 2.0 be far behind? What will it be like?
Earth 2.0 would be a rocky planet the size of our own, orbiting a star like the sun at a distance where the surface temperatures would allow liquid water oceans, assuming the planet was sheathed in an atmosphere containing greenhouse gases.
Glenn A. Walsh, Project Director,
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