Ranger 3 was a spacecraft designed to transmit pictures of the lunar surface during the last 10 minutes prior to impacting the Moon. A malfunction in the booster guidance system resulted in excessive spacecraft speed. Ranger 3 missed the Moon by 36,800 km and is now in a heliocentric orbit.

Mission type: Lunar Exploration · Orbit: Heliocentric N/A

Rocket: Atlas Agena B · Provider: United States Air Force