Lightning Is Extremely Hot

While the Sun's surface is our celestial standard for extreme heat, a nearby lightning strike is actually far hotter. A single bolt can reach temperatures of roughly 30,000 Kelvin, about five times hotter than the solar surface. This incredible temperature is generated as a massive electrical discharge rips through the atmosphere. The intense energy instantly converts the narrow channel of air into a state of matter called plasma. The air in this channel is heated so violently and so quickly that it expands explosively, creating a powerful shockwave that we perceive as thunder.

The power of this thermal blast is tangible. When lightning strikes sandy soil, it can fuse the sand particles together, creating hollow glass tubes known as fulgurites, or "petrified lightning." This phenomenal event is also surprisingly common. Globally, lightning strikes our planet approximately 8.6 million times every day, which averages out to about 100 strikes every single second. Each one of these strikes is a momentary, miniature star brought down to Earth, a constant and dramatic reminder of the atmosphere's raw power.