Gallup Poll. 1997
http://abcnews.go.com/sections/science/DailyNews/evolutionviews990816.html
Among scientists, only 5 percent hold the literal Bible view, 40 percent believe in theistic evolution and a majority, 55 percent, believe in evolution without help from God.
So 95% believe in evolution; most claiming it is entiirely naturalistic, a smaller number think it happened with some guidance from God, and only 5% adhering to a strictly biblical view.
Since there is no proof that Christians believed in a flat earth at any point in time, and since it has become evident that libelous flat earth tag can't be found towards Christians before 1830, saying that Christians believed the earth was a flat disk is just idiotic and shows extreme prejudice on your part. The Bible says the earth is round. Christians believe the Bible.
As I understand it, and I'm not a Hebrew scholar, but there are several here on FR, the passage in Isaiah that translates to 'the circle of the earth', uses a Hebrew word that means circle or disk. It does not mean sphere. Therefore, to claim the Bible says there is a spherical earth is fallacious.
Some Christians, particularly in the early middle ages, did believe in a flat earth. For example, there is the famous sixth century map of Cosmas Indicopleutes which shows a flat earth with four corners.
Your accusations of prejudice on my part are ad hominem and unjustified.
What in the sam-hill do you think panspermia is supposed to be saying
That life arrived on earth from elsewhere. it just avoids the question of the origin of life. It does not answer it.