Talk:List of galaxies
Unclear[change source]
"Note that the radius of the observable universe must amount to only 13.8 billion light-years (like the age of universe) is a wrong concept. Light travel distance (LTD) is time required for light to reach the observer."
- What is this trying to say? First sentence is obscure. Macdonald-ross (talk) 14:41, 30 August 2020 (UTC)
Oops ! This means that the claim that the Universe is just 13.8 billion light years across is wrong.