Multiple Choice
Why did Big Bang nucleosynthesis only produce elements less massive than beryllium?
A) The laws of physics do not allow the formation of massive nuclei outside stars.
B) The universe was never hot enough for nucleosynthesis by fusion before stars formed.
C) There was no black hole to provide sufficient energy for advanced nucleosynthesis.
D) The universe expanded and cooled rapidly.
E) More massive elements did form, but they decayed very rapidly into lighter ones.
Correct Answer:

Verified
Correct Answer:
Verified
Q88: If the distance of a galaxy at
Q89: In the early 1960s, physicists Penzias and
Q90: The CMB is a snapshot of the
Q91: If the Hubble constant were equal to
Q92: If you measured the distances and recessional
Q93: If the distance of a galaxy is
Q94: Distant galaxies we can see today with
Q95: Galaxy peculiar velocities are typically about 300
Q96: Explain how the figure below shows evidence
Q98: Briefly explain how an accurate determination of