What extrasolar planet discoveries were initially surprising?
A) Jupiter-like planets orbiting very close to their stars
B) planets with large eccentricities
C) systems with only one planet
D) A and B
E) A and C
F) B and C
Question 2
What is a protostar?
A) a star that is still in the process of forming B) an intermediate-mass star
C) a star that has planets D) a star in its final stage of life
