In a hypernova, a very energetic supernova creates a
A) set of planets to orbit their neutron star host.
B) black hole.
C) millisecond pulsar.
D) very visible supernova remnant.
E) white dwarf and its planetary nebula.
Question 2
In general, the ________ lunar craters sit atop the mare.
Fill in the blank(s) with correct word