What specifically produces the bright streak of light observed as a meteor?

Answer

The resulting cloud of superheated, vaporized atoms colliding with atmospheric molecules

The visible streak is created when the outer layers of the object vaporize (ablation), and the resulting superheated atoms collide with atmospheric molecules, creating an ionized trail that de-excites and glows.

What specifically produces the bright streak of light observed as a meteor?
nameMeteorSpaceastronomy