At the End of the Mission of Galileo in 2003,the

question 160

Multiple Choice

At the end of the mission of Galileo in 2003,the spacecraft was sent to burn up in the atmosphere of Jupiter.Why was it not just left floating in space?

• A) The last part of the mission was a final probe of Jupiter's atmosphere.
• B) It was feared that Galileo might someday crash on Europa and contaminate its oceans with biological organisms from Earth.
• C) It was feared that the new Cassini spacecraft might crash into it.
• D) Galileo carried a nuclear reactor, and the spacecraft was destroyed to prevent possible radioactive contamination.

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Definitions:

Passage of Time

The progression or flow of time characterized by changes and events.

Backward Chaining

A method for teaching a stimulus–response chain. When backward chaining is used, the reinforcing power of the positive reinforcer (presented at the end of the chain) is transferred “down the line” to each discriminative stimulus as it is added to the chain. This makes for very efficient use of positive reinforcement to establish a strong chain.

Terminal Response

This is the final action or series of actions that occurs at the end of a behavioral chain, often considered the goal behavior in training or therapy.

Conditioned

In psychology, refers to behavior that is developed or learned in response to specific environmental stimuli.