Yes.
Is the expansion of the universe accelerating?
Yes.
What discovery received the Physics Noble Prize in 2011?
That the expansion of the universe is accelerating.
Name the three scientists that received the prize?
Saul Perlmutte, Brian P. Schmidt and Adam G. Riess
White dwarfs.
What are the fractions of baryonic matter, dark matter, and dark energy?
The universe is 27.4% baryonic matter and dark matter and 71.3% dark energy.
Describe Figure 16.16 of the textbook.
The figure shows different models for the expansion of the universe.
Which model fits best?
The supernova data model.
According to this model, which is the age of the universe?
14 billion years old
Is there something opposing gravitational attraction in the universe as a whole?
Yes, dark matter.
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