https://www.idahostatejournal.com/news/local/chubbuck-library-museum-partner-on-nasa-exoplanet-exhibit/article_d7778948-bfcf-5280-ae0f-230d0900f22e.html > About 40 light years away, seven planets similar in size to Earth orbit the ultra-cool dwarf star TRAPPIST-1. > Three of those planets lie within the so-called Goldilocks zone: reminiscent of the story character's porridge, conditions in the zone are "just right" for scientists seeking life in other solar systems.