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NASA Briefing on the Discovery of TRAPPIST-1's 7 Planets - "NASA’s Spitzer Reveals Largest Batch of Earth-Size, Habitable-Zone Planets Around a Single Star"

NASA Discovers 7 Planets Orbiting TRAPPIST 1

TRAPPIST-1, Planetary system Web site

ESOcast 83: Ultracool dwarf star with planets (video)