The size of the Universe is best described as
A) 100,000 light years across.
B) small.
C) in terms of the width of 5 galaxies across.
D) 1 astronomical unit across.
E) vast beyond comprehension.

Question

Quizplus · Accepted Answer

The size of the Universe is beyond human comprehension and is estimated to be at least 93 billion light-years across. Option A is incorrect as the size of the Milky Way galaxy alone is approximately 100,000 light-years. Option B is subjective and not a scientific measure. Option C is too specific and not a general estimate of the size of the Universe. Option D is also too small as one astronomical unit is the distance between the Earth and the Sun, which is a very tiny fraction of the size of the Universe.

The Size of the Universe Is Best Described as