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Interstellar reddening and extinction are due to in the interstellar medium.
Aptitude
A natural ability to do something or a person's innate potential for learning, understanding, or skill acquisition.
Fighter Pilot
A military aviator trained to engage in air-to-air, and often air-to-ground, combat while in the cockpit of a fighter aircraft.
Forcibly Sterilized
A coercive process in which an individual is sterilized without their informed consent, often as part of eugenic policies or other forms of control.
Intellect
The faculty of reasoning, understanding objectively, and applying knowledge.
Q9: As a spaceship's velocity gets closer to
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Q27: Suppose you have gone to great lengths
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