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Astronomy
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Planetary-Defense Risk and Probability
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Astronomy
AST.283 Planetary-Defense Risk and Probability
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A 1-kilometer asteroid is discovered with an impact probability of 1 in 1,000,000 in 90 years. Which statement is most accurate?
A
One kilometer means the impact should be announced as certain despite the tiny probability.
B
The impact is extremely unlikely, but the potential consequence is large enough that cataloging and periodic tracking are appropriate.
C
One in 1,000,000 means the asteroid should be described as impossible to hit Earth (for this situation).
D
Ninety years means the warning is too far away to have any scientific value.
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