Mark 16: What happened to the body of Jesus?

The gospel of Mark doesn't intend to explain all mysteries. For instance: Jesus healed a person but asked him not to tell anyone. Why? Mystery.
Some women went to the tomb to prepare the body of Jesus after crucifixion. As soon they entered the tomb (that was strangely opened), they saw a man (an angel?) sitting :

6-7 He said, “Don’t be afraid. I know you’re looking for Jesus the Nazarene, the One they nailed on the cross. He’s been raised up; he’s here no longer. You can see for yourselves that the place is empty. Now—on your way. Tell his disciples and Peter that he is going on ahead of you to Galilee. You’ll see him there, exactly as he said.”

This is basically how Mark ends. It let many questions opened:
. Did the disciples find Jesus in Galilee?
. If so, what happened?
. Why Mark finished his gospel in a so strange way? Who were his readers? The church? The church, mainly in the beginning of Christianity, had many eye witness of Jesus, but even so...
Anyway, what happened to the body of Jesus? Some men (Lee Strobel, Josh McDowel) converted to Christianity searching for this answer.