"It was breathtaking," she said. "It’s like a sign of God."
Though users on social media have various theories on what caused the light formation, including aliens or UFOs, experts said the stunning view was caused by a rare weather phenomenon called "cloud iridescence."
The colorful luminescence is caused by the sun's light being refracted by water droplets and ice crystals in the cloud, said, Eladio Solano, a meteorologist with Costa Rica's National Meteorological Institute, according to Costa Rica media outlet Teletica News.
A rare fire rainbow appeared above an island in South Carolina.
The phenomenon produced a similar sky spectacle in South Carolina last month that was dubbed a "fire rainbow."
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