Given That Our Galaxy Has a Volume of Approximately 8

question 74

Multiple Choice

Given that our galaxy has a volume of approximately 8 × 10¹² ly³, what would be the average minimum amount of time to exchange messages between civilizations if there are currently 125,000 intelligent civilizations in our galaxy?

• A) 800 years
• B) 1,200 years
• C) 200 years
• D) 400 years

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Definitions:

Mineralcorticoids

A class of corticosteroids, originating from the adrenal cortex, that regulate electrolyte and water balance.

Parathyroid Hormone

A hormone produced by the parathyroid glands responsible for regulating calcium levels in the blood.

Thymosin

A hormone produced by the thymus gland, involved in the development and differentiation of T-cells in the immune system.

Imperative

Imperative refers to something of vital importance or necessity that demands attention or action.