A science textbook used in Hardin County schools in 2012 still listed Pluto as a full-fledged planet – six years after it was reclassified as a dwarf planet.
A science textbook used in Hardin County schools in 2012 still listed Pluto as a full-fledged planet – six years after it was reclassified as a dwarf planet. Bruce Schreiner Associated Press file photo
A science textbook used in Hardin County schools in 2012 still listed Pluto as a full-fledged planet – six years after it was reclassified as a dwarf planet. Bruce Schreiner Associated Press file photo