Which of the following is NOT icy in composition?
A) comet nuclei
B) Kuiper Belt Objects
C) the polar cap of Mars
D) asteroids
E) most Jovian satellites
Question 2
What happens to two neutron stars that are orbiting so close together they emit gravitational waves?
A) The neutron stars will fly apart from one another.
B) It has no effect.
C) The neutron stars will spiral together and merge.
D) The neutron stars will recombine and form a new, young star.