If an Astronaut Were to Look Back from His Spacecraft

question 36

Multiple Choice

If an astronaut were to look back from his spacecraft toward the solar system and measure that the angle between Earth and the Sun was 1 arcsecond, how far from the un would the astronaut be? (Assume that the Earth-Sun line is at right angles to your line of sight.)

• A) 1 Mpc
• B) 1 au
• C) 1 pc
• D) 1 ly

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Definitions:

Colon Cleansed

The process of removing toxins and waste from the colon, often through the use of fluids.

Diarrhea

A condition characterized by frequent and watery bowel movements, often an indicator of digestive distress or infection.

Colonoscopy

A procedure used to determine the cause of diarrhea, constipation, bleeding, or lower abdominal pain by inserting a scope through the anus to provide direct visualization of the large intestine.

Neurological Disorder

A disorder affecting the nervous system, including the brain, spinal cord, and nerves, which can impact various functions such as movement, communication, and cognition.