How can we tell the Universe is billions of years old?

Count the rings. Sorry. I had to do it.

no fallen limited to only fourth dimension and finite mankind can know .

Because of the number of candles on it’s birthday cake! :-P

By using a lot of math and science. I would try to summarize but don’t think I can do it justice. Read the article.

Simply put, we measure the farthest known source of light, then multiply that by the speed light travels, which gives us distance, and more importantly… time.

Adina1968 : Is that where the sun comes from? A birthday cake with waytoomany candles?

@Delerium, and they’re the trick candles that you cant blow out!