Which of the following is NOT a moon of Jupiter?
A) Ganymede
B) Callisto
C) Titan
D) Io
Question 2
Based on our current understanding of physics, we can understand the conditions that prevailed in the early universe as far back in time as about
A) 380,000 years after the Big Bang.
B) one ten-billionth of a second after the Big Bang.
C) 10-45 seconds after the Big Bang.
D) 10 billion years ago.