If Astronauts Were to Set Up a Permanent Settlement on the near Side

question 106

Multiple Choice

If astronauts were to set up a permanent settlement on the near side of the Moon, how many times each year would Earth rise and set as seen by a resident of this base?

• A) 12 times each year
• B) 13 times each year
• C) never-Earth would remain essentially motionless in the sky
• D) once each year

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Definitions:

Choroid Layer

A layer of the eye between the retina and the sclera that contains blood vessels and provides oxygen and nutrients to the eye.

Pigment Cell Layer

A layer of cells that contain pigment, such as the melanin-containing cells found in the skin or the iris of the eye, which provide coloration and protection from UV light.

Tympanic Membrane

Also known as the eardrum, a thin membrane that vibrates in response to sound waves, transmitting sounds to the middle and inner ear.

Altitude

The height or elevation of a place above sea level, often affecting climate, oxygen availability, and physical exertion requirements.