Astronaut Ron Garan took the remains of 19th century nun St. Therese of Lisieux aboard the Discovery space shuttle in 2008. In March, a relic containing the remains arrived in Jerusalem, where it will be worshiped by Catholics. However, it's unlikely the relics from that cosmic voyage are the same ones now in Israel, since the reliquary that arrived Monday would be too large for space travel. St. Therese was born in France in 1873 and is one of only a few Doctors of the Church, a designation granted to distinguished Catholic thinkers.
Not only astronauts get to fly in space. They are often allowed to bring along important objects and small tokens -- each astronaut is allowed up to two pounds of mementos. Some of these objects never leave space and are stuck to the walls of the International Space Station. But people from Earth have also sent interesting objects and even human remains aboard of spacecrafts.