One of the main reasons the Hubble Space Telescope was built and launched was to measure how fast the universe is expanding. If the expansion turns out to be faster than we thought, our estimate for the age of the universe will be
A)younger (less time between now and the Big Bang).
B)unaffected.
C)older (more time between now and the Big Bang).

Question

Quizplus · Accepted Answer

If the expansion of the universe turns out to be faster than we thought, it means that galaxies are moving away from each other at a faster rate. This would mean that it has taken less time for the galaxies to move to their current positions, and therefore the universe is younger than we previously estimated.

One of the Main Reasons the Hubble Space Telescope Was