We are closer to answering the question, 'Are we alone in the universe?' ... We aim to answer that question by looking for planets, eventually imaging them and ultimately diagnosing the presence of life on those planets.

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All you have to do is look at the textbooks, ... They are being rewritten page by page, Hubble image after Hubble image.

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With SIRTF you'll be able to fill in that population of most distant objects.

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Scientists are keenly aware that the telescope is up there not doing anything. There's an enormous desire to get the telescope working. It's like a car -- you don't want to leave a car sitting in the garage not running. That's not good for it.

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