Neptune's winds blow faster than sound
Neptune experiences the solar system's most powerful winds, howling at 1,500 miles per hour—faster than the speed of sound on Earth and fueled by the planet's internal heat.
Neptune boasts the fastest winds in our solar system, reaching speeds of 1,500 miles per hour. These supersonic gusts, observed by NASA's Voyager 2 in 1989, easily surpass Earth's sound barrier. Unlike our planet's solar-driven winds, Neptune's powerful tempests are fueled by its internal heat, creating massive atmospheric storms like the Great Dark Spot.
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