God gives us knowledege of science bit by bit from time to time. The science can give us clue to the truth.
In the internet, there are some belongings of the Prophet Muhammad shown, such as his turban, clothing, sword, teeth and hair. It's not we don't simply reject the truth, but at least some scientific testing or forencic science to test those belongings, at least we knew the nature of the DNA. The DNA, should give us some idea of the region where it comes from.
How about Prophet Jesus? Where is he actually buried? or to other universe? In Quran, he was brought to heaven.