Ball Lightning- A rare phenomenon described as a floating, illuminated sphere that occurs during thunderstorms. It has been described as moving fast, slow or staying stationary, being quiet or produce a hissing or crackling noise, passing through windows, last from seconds to minutes, and/or disappear slowly or suddenly either quietly or with a loud bang. No definitive photographs have ever been obtained of ball lightning, nor have any official accounts been made of it, therefore its veracity in scientific circles is questioned. The only source of information on ball lightning has come from eyewitness accounts, and to this day 'ball lightning' remains a mystery. Since an arc from a short-circuiting power line exhibits many of the characteristics attributed to ball lightning and since a direct lightning strike can cause such a short circuit, many ball lightning reports may actually be nothing more than faults (short circuits) on energized power lines.