Yes, lava glows when it first emerges from the Earth's surface.
Lava's glow is a direct result of its extremely high temperature. Fresh lava typically ranges between 1,300°F and 2,200°F (700°C and 1,200°C). This intense heat causes the lava to emit light, a phenomenon known as incandescence.
Color and Temperature
The color of the glow is an indicator of the lava's temperature:
- Orange/Red: Indicates a cooler lava temperature.
- White/Yellow: Indicates a hotter lava temperature. Sometimes, at the hottest temperatures, it can even appear bluish.
The appearance of glowing lava is often a spectacular and awe-inspiring sight, showcasing the immense energy contained within the Earth. The color changes as the lava cools. As it loses heat to the surrounding environment, the glow diminishes and the lava solidifies into rock.