Okay. So, it's cool that people believe there is a heaven.
However, other than what God tells us in the bible, I'm not sure we have to set out to "prove" its existence.
Also, I get a little concerned with the accounts of "near-death experiences." I'm not saying they aren't real, just that the visions may not always be from God. I feel like it can go the other way, too. Maybe some are from the enemy, don't know.
But if we are careful, we can look at these beautiful NASA pictures with awe and wonder. I always think of science as a gift from God. It gets us a little closer to Him. But not so close as to damage us.