As Christians worldwide gather for Easter to celebrate their belief in the death and rebirth of Jesus, researchers continue to delve into the mysteries that surround the man. The following are five questions about Jesus that, for now, at least, remain unanswered. In 2008, astronomer Dave Reneke argued that the Star of Bethlehem (a celestial event long associated with Jesus' birth) may have been Venus and Jupiter coming together to form a bright light in the sky. Other researchers have claimed that a similar conjunction between Saturn and Jupiter occurred in October of 7 B.C. Still others have claimed that Jesus was born in the spring, based on stories about shepherds watching over their flocks in fields on the night of Jesus' birth — something they would have done in the spring, not the winter.