Question

Was Pluto downgraded from planet to ‘dwarf planet’ before or after the Mars Exploration Rover mission began?​

Answer 1

Before the mars exploration

Answer 2

Five years ago today, the solar system lost a planet. On Aug. 24, 2006, Pluto — which had been known as the ninth planet since its 1930 discovery — was demoted to the newly created category of "dwarf planet." I HOPE THIS HELPED!! <333

Step-by-step explanation: