Need help with a question a atheist presented

[Cis.jd]

So i wanna make sure i answer this throughly. Here’s his questions after we talked about atheist wanting a infinite universe instead of dealing with the Big Bang. Any suggestions on what do actually say. I’m trying to find the polls now.

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There probably isn't anything to show that scientists "want" an infinite universe. They just assume so. Which is odd.. atheists have no problems believing in an infinite universe yet criticize the "he was always there" to be illogical. Science has actually shown this to be conceivable, just by how time works outside of our world. Lets say you launch from earth onto several universes at the speed of light. Most likely days (or years) have passed here on earth since you took off, yet at your point it's just been seconds. Which time is correct?

Big Bang. Ask him for a poll or any credible source that states the Big Bang is rejected in science first. A poll may not be available anymore because of it possibly being a well accepted theory in science. Atheists netizens used to politic this big bang against christians, i guess when they found out the theory was proposed by a Catholic Priest is when they started drawing doubts on it.