Religious Leaders React to Potential of Life on New Planets

The quest to find life on other planets got a boost when astronomers confirmed the existence of at least seven Earth-sized planets orbiting a red dwarf star just 40 light years away.

Three of the planets are located in the so-called "habitable" zone, a kind of "Goldilocks" sweet spot in that their distance from the sun makes them not too hot, not too cold, but just right for having liquid water—an essential ingredient for life.

The pope's own astronomers applauded the new discovery around the dwarf star, TRAPPIST-1, named after one of the many telescopes that detected the planets. The study's results were published in Nature magazine on Feb. 22.

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