Imagine that a year from now you read that astronomers have discovered a group of
50 billion-year-old stars.What would you conclude from such a discovery?
A)They must be spectral class O and B stars
B)They must be in a late stage of stellar evolution
C)Our present ideas on evolution of the universe are seriously in error
D)We would have to revise our theories of stellar energy sources

Question

Quizplus · Accepted Answer

The discovery of stars that are 50 billion years old would challenge our current understanding of the universe, since the age of the universe is estimated to be around 13.8 billion years old. This would suggest that our ideas on the evolution of the universe are seriously in error, and would require a revision of our existing theories.

Imagine That a Year from Now You Read That Astronomers