Here's a hadith from prophet Muhammad (PBUH):
"The Prophet (?) said, "One should not say that I am better than Jonah (i.e. Yunus) bin Matta." So, he mentioned his father Matta. The Prophet (?) mentioned the night of his Ascension and said, "The prophet Moses was brown, a tall person as if from the people of the tribe of Shanu'a. Jesus was a curly-haired man of moderate height." He also mentioned Malik, the gate-keeper of the (Hell) Fire, and Ad-Dajjal."

So, apparently Jesus had curly hair. This matches the "actual Jesus" image produced by scientists, and certainly adds to the credibility of the prophet (PBUH). Thoughts?