SOLAR SYSTEM

Detailed explanation-1: -Given its distance from the Sun, Neptune has the longest orbital period of any planet in the Solar System. As such, a year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60, 182 Earth days).

Detailed explanation-2: -One day on Neptune takes about 16 hours (the time it takes for Neptune to rotate or spin once). And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60, 190 Earth days).

Detailed explanation-3: -Saturn: 9.69 km/s (21, 675 miles per hour), or a period of about 29.42 years. Uranus: 6.81 km/s (15, 233 miles per hour), or a period of about 83.75 years. Neptune: 5.43 km/s (12, 146 miles per hour), or a period of about 163.72 years.

Detailed explanation-4: -Unlike Mercury, Mars and Venus, Neptune is a slow-moving outer planet, meaning its energy is felt across a generation and beyond the realm of the individual.

Detailed explanation-5: -They move pretty quickly! The planets all orbit at different speeds. The closer a planet is to the Sun, the faster the planet orbits. Mercury is the fastest planet, moving at 47.87 km/s while Neptune orbits at 5.43 km/s.