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Questions regarding the National Aeronautics and Space Administration, the American civilian space agency.

6 votes

How was Trappist-1 discovered?

The dwarf star 2MASS J23062928-0502285 was first catalogued in 1999, if I've got that right. In May last year (2016) the Transiting Planets and Planetesimals Small Telescope–South (TRAPPIST) facility …
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