Which planet is furthest from the sun?

Neptune is indeed the planet that is furthest from the Sun in our solar system. The distance of planets from the Sun increases as you move outward from Mercury, Venus, Earth, and Mars to the outer planets, which include Jupiter, Saturn, Uranus, and Neptune. Among these outer planets, Neptune is located at an average distance of about 30.1 astronomical units (AU) from the Sun, whereas Uranus is at approximately 19.2 AU, Saturn at about 9.6 AU, and Jupiter at around 5.2 AU. This significant difference in distance confirms Neptune's position as the most distant planet in the solar system. Understanding these distances is fundamental in astronomy, as it helps illustrate the structure and scale of our solar system.