Spitzer Space Telescope, one of agency’s great observatories, one of Spitzer’s great discoveries was that of the TRAPPIST-1 star, an ultra-cool dwarf, which has seven Earth-size planets orbiting it.
Spitzer Space Telescope, one of agency’s great observatories, one of Spitzer’s great discoveries was that of the TRAPPIST-1 star, an ultra-cool dwarf, which has seven Earth-size planets orbiting it.
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