The accelerated expansion of the universe was observationally discovered using
A) Type Ia supernovae.
B) Cepheid variables.
C) RR Lyrae.
D) stellar parallax.
E) colors of galaxies.
Correct Answer:
Verified
Q2: If there were no dark energy
Q3: In modern cosmology, Einstein's cosmological constant is
A)
Q4: Mass density acts to _ the expansion
Q5: If
Q6: The "Big Crunch" scenario applies to a
Q8: Which of the following has the greatest
Q9: If
Q10: In the 1990s, astronomers studying distant Type
Q11: If the Hubble constant had a
Q12: If the fate of the universe were
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