Multiple Choice
What was the COBE satellite designed to measure?
A) redshifts of objects at cosmological distances to obtain an accurate measurement of the Hubble constant
B) 21-cm radio radiation from intergalactic hydrogen
C) X-rays from quasars and other objects at cosmological distances
D) cosmic microwave background radiation
Correct Answer:

Verified
Correct Answer:
Verified
Q80: What is the range of the electromagnetic
Q81: The cosmic microwave background radiation is not
Q82: Physicists are attempting to develop a Theory
Q83: As currently understood, what happens to the
Q84: Who developed the steady-state theory of the
Q86: In cosmology, the constant that is intimately
Q87: The electromagnetic and weak nuclear forces are
Q88: The cosmic microwave background shows a pattern
Q89: Which single observation is perhaps the strongest
Q90: Einstein introduced a "cosmological constant" into his