What was responsible for the "orange glow" observed by astronauts on the outside surface of their space shuttle as they orbited the Earth?
A. O₂ interacting with SO₂ to form SO₂* excited state molecules.
B. An oxygen atom interacting with nitric oxide adsorbed on the shuttle's surface to form electronically excited nitrogen dioxide, NO₂*.
C. N₂ interacting with CO₂ to form CO₂* excited state molecules.
D. CO and CO₂ interacting to form CO₃* excited state molecules.
E. Star dust from the stratosphere combining with upper atmospheric O₂ gases.