4 ms·

Traveling at the sort of speed we can easily imagine as "fast", say 150km/hr, it'd take 115 years.

• midasuni 4y ago
  The fastest travel speed we can really understand is about the speed of sound (jet travel), most westerners have travelled at that speed. At jet speed it takes best part of a month just to get to the moon, to get to the sun takes 17 years. To reach Neptune you’d have to have left about the same time Columbus visited America.
  • dhosek 4y ago
    >The fastest travel speed we can really understand is about the speed of sound (jet travel), most westerners have travelled at that speed. To be pedantic, no, not really. Commercial jets can travel at speeds up to 955 kilometres per hour (593 mph) (per wikipedia). The speed of sound is roughly 1235 kph (767 mph). Also note that commercial jets usually travel slower than their maximum speed to save fuel.