The Wilkinson Mapping Project gave:
A) Ωₒ = 1, but matter (dark and visible) is only 27% of this, the rest is dark energy.
B) a closed universe, where dark matter triumphs over dark energy.
C) an exact picture of the nature of dark energy.
D) us proof that 90% of matter is dark, only 10% normal.
E) the background cosmic temperature is 4.36 K.

Question

Quizplus · Accepted Answer

The Wilkinson Mapping Project determined that the universe is flat (Ωₒ = 1) but that only 27% of the universe is made up of matter (both dark and visible), while the rest is dark energy. Option B is incorrect because a closed universe would mean that the universe would eventually collapse, which has not been observed. Option C is incorrect because dark energy is still not well understood. Option D is incorrect because while the Wilkinson Mapping Project did determine that most matter is dark, the percentages given are inaccurate (it's closer to 85% dark matter and 15% normal matter). Option E is incorrect because the background cosmic temperature is actually 2.73 K.

The Wilkinson Mapping Project Gave