General Question

Upward's avatar

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

Asked by Upward (740points) July 20th, 2008
Observing members: 0 Composing members: 0

7 Answers

Sueanne_Tremendous's avatar

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

seVen's avatar

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

Adina1968's avatar

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

nikipedia's avatar

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.

Spargett's avatar

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.

delirium's avatar

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

joeysefika's avatar

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

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