If the Hubble Space Telescope were used to take pictures of the entire sky,roughly how many galaxies would those pictures contain?

Question

Quizplus · Accepted Answer

The Hubble Space Telescope has already taken pictures of a small portion of the sky and detected approximately 100 billion galaxies. Extrapolating this to the entire sky, it is estimated that the Hubble could detect up to 200 billion galaxies. Therefore, the best choice is D, 100 billion.

If the Hubble Space Telescope Were Used to Take Pictures