How Can We Explain the Presence of Extrasolar Planetary Systems

question 45

Multiple Choice

How can we explain the presence of extrasolar planetary systems with Jovian-sized planets at distances at which we normally find terrestrial planets?

• A) they are brown dwarfs that were captured by their parent stars
• B) these are massive terrestrial planets that formed close to their parent stars
• C) they are Jovian planets that were spun out from their rapidly spinning parent stars
• D) the Jovian planets formed farther out and then migrated inward

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Definitions:

Depression

A psychological disorder characterized by persistent sadness, loss of interest in activities, and a range of emotional and physical problems.

Mania

A mental health condition characterized by periods of great excitement, euphoria, delusions, and overactivity.

Pessimistic Explanatory

A cognitive style where individuals tend to attribute negative events to stable, internal, and global causes, expecting future failures.

Global

Relating to or encompassing the whole world; worldwide in scope or application.