What does the Big Bang theory describe?
An explosion in space that created the universe.
The rapid expansion of space from an initial point.
The process by which stars form in galaxies.
The collision of two galaxies that formed the Milky Way.
Which of the following is evidence for the Big Bang theory?
Cosmic Microwave Background Radiation (CMB).
Observed redshift of galaxies.
The existence of black holes.
The abundance of light elements like hydrogen and helium.
The shape of the Earth.
Which statement about the universe's expansion is correct?
The expansion means galaxies themselves are growing larger.
The space between galaxies is expanding over time.
The universe stopped expanding after the Big Bang.
The expansion of the universe pushes galaxies into black holes.