Looking for an Earth-size planet around a nearby star (besides the Sun) is like looking for a pinhead located
A. across the street.
B. thousands of kilometers away.
C. across the length of a football field.
D. a few hundred kilometers away.
Answer:B
Looking for an Earth-size planet around a nearby star (besides the Sun) is like looking for a pinhead located
A. across the street. B. thousands of kilometers away. C. across the length of a football field. D. a few hundred kilometers away.