space medium True/False

Eris is more massive than Pluto.

  1. True
  2. False

Answer: True

Eris, discovered in 2005, is slightly more massive than Pluto, prompting the IAU to redefine 'planet' and create the 'dwarf planet' category.

Topic Solar System - Dwarf Planets
Exam Relevance SSC General Science, UPSC Prelims
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