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The original was posted on /r/todayilearned by /u/Melenduwir on 2026-05-23 12:42:06+00:00.
Original Title: TIL that recent scientific research suggests that the 40 Eridani star system has no planets; when Andy Weir imagined an alien species native to that system for Project Hail Mary, he used the consensus at the time that it did, but the book is now inaccurate.
As have many others, since it’s a close and similar star to the Sun. Andy Weir said the main reason for using it was to have similar stars close enough to each other to make the spread believable.