No You are the one that might want to check his fact because you not only you are being fooled by some who tries to assimilate those scientist as atheist and spreads such FUD but their stance about religion was clear

Albert Einstein is Jew, and his work on light, general relativity had always a religious inspiration one of the most know example in science is the Cosmological constant and an other one is when he was arguing against Quantum physics (before it became the Quantum Mechanics theory) and his analogy of God trowing dice, and his bibliography is available you can check that out

One of the most famous quotes from Carl Sagan is "Atheism is stupid." if this isn't enough proof of you that he isn't a religious person then you might want to check his bibliography and his attachment to Christianity

Stephan Hawkins some religion Apologist found a tresor in Hawkings recent book "The Grand Design" saying that the Univers can be created due to Gravity and not necessary God, they just forgot that during his whole life and each time he was asked he never denied God! Now does he follow a certain religion he never was clear about this.