How Might the Inward Migration of a Jovian-Like Planet in an Extrasolar

question 44

Multiple Choice

How might the inward migration of a Jovian-like planet in an extrasolar planetary system alter the probability of life appearing on inner terrestrial planets?

• A) it might improve chances slightly because some of the terrestrial planets may become moons of the Jovian planet
• B) it might greatly decrease the chance because the orbits of the inner, terrestrial-like planets would be disrupted
• C) it would make no difference at all
• D) it might improve chances because it would protect inner, terrestrial-like planets from impacts