Observations of Type I Supernovae in Distant Galaxies Have Shown

question 47

Multiple Choice

Observations of Type I supernovae in distant galaxies have shown that

• A) the star formation rate in galaxies decreases with increasing redshift.
• B) the expansion rate of the universe is increasing.
• C) the cosmological constant is zero.
• D) dark energy is negligible at the present time.

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