How old is the universe since the Big Bang? Pick the best answer according to radioactive dating in the solar system, light travel times to most distant galaxies, time reversal of the Big Bang, and observations of the 3-K radiation.

Question

Quizplus · Accepted Answer

The age of the universe according to radioactive dating of rocks and meteorites in the solar system, as well as observations of the cosmic microwave background radiation (3-K radiation), is approximately 14 billion years. Light travel times to the most distant galaxies also confirm an age of around 14 billion years. The time reversal of the Big Bang theory suggests that the universe is even older than 14 billion years, but this is not the most commonly accepted explanation for the age of the universe. Therefore, the best answer is D) 14,000,000,000 years.

How Old Is the Universe Since the Big Bang? Pick