The One Component of the Material of the Milky Way

question 149

Multiple Choice

The one component of the material of the Milky Way Galaxy that prevents astronomers from seeing and photographing the galactic center at optical wavelengths is

• A) very cold hydrogen gas.
• B) interstellar dust.
• C) the glare of light from nearby stars.
• D) hot hydrogen gas.

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Definitions:

Fovea

A tiny pit located in the macula of the retina, responsible for sharp central vision due to a high concentration of cone cells.

Fovea

A small depression in the retina of the eye where visual acuity is highest due to the concentration of cones.

Visual Processing

The ability of the brain to interpret and make sense of visual information from the eyes, including recognizing shapes, colors, and movement.

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into nerve signals that are sent to the brain.