COLORADO SPRINGS — Lessons learned building the James Webb Space Telescope and starlight-masking technologies in development for follow-on observatories should make it possible to find the chemical signatures of life on planets orbiting other stars, at a pricetag comparable to the $8 billion that Webb will cost. A science panel at the Space Symposium here outlined post-Webb plans to find Earthlike planets around nearby stars in the "Goldilocks zone" where conditions are just ...


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