Multiple choice general knowledge science & technology

Which planet on this list was the most recently discovered

  1. Neptune

  2. Mercury

  3. Jupiter

  4. Mars
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Neptune was discovered in 1846 through mathematical predictions before being observed telescopically. Mercury, Jupiter, and Mars were all known to ancient civilizations as visible 'wandering stars' in the night sky.

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