Quote:
Originally Posted by multiweb
Very cool article. They say a 5th of the Universe's history. I thought the last estimate was 13 billion years old. Does this mean they've reviewed the number to be more like 20 or 25?
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Hi Marc,
The current estimate from the ESO Planck mission is 13.82 billion years old.
The earlier WMAP mission had estimated 13.73 +/- 0.12 billion years old.
(One thing that we know for sure is that the universe began on a Tuesday
around lunchtime.)
So the quote by Professor Sadler where she says they would be
"hunting for galaxies that are five to eight billion years old, a timespan
that represents a fifth of the universe's history" seems to be in error
unless we are interpreting what she meant to say incorrectly.