What is the closest that extrasolar planets have been found to their stars?
A. nearer to their stars than Earth to the Sun
B. nearer to their stars than Saturn to the Sun
C. nearer to their stars than Mercury to our Sun
D. unknown: we do not know the distance with enough accuracy to say
Answer:C
What is the closest that extrasolar planets have been found to their stars?
A. nearer to their stars than Earth to the Sun B. nearer to their stars than Saturn to the Sun C. nearer to their stars than Mercury to our Sun D. unknown: we do not know the distance with enough accuracy to say