A reflection nebula is made visible by
A) thermal energy emitted as a continuous spectrum by very hot gas,much like that emitted by a hot body on Earth.
B) blue light,preferentially scattered by tiny dust grains.
C) emission lines from hydrogen,which itself has been ionized by UV light from embedded stars.
D) light from embedded stars,reflected over a wide range of wavelengths toward Earth by crystals of water.

Question

Quizplus · Accepted Answer

Reflection nebulae occur when visible light from nearby stars is scattered by dust particles, creating a blue glow. This process is known as Rayleigh scattering and is responsible for the blue color of the sky on Earth. In reflection nebulae, the dust particles are typically much larger than atmospheric particles, which creates a more diffuse glow.

A Reflection Nebula Is Made Visible by