CLEVELAND (CNS) -- Are humans alone or are we one rational species among many in the universe? It's a question both scientists and theologians are exploring. And it is scientific discoveries that are energizing the queries not just about the possibility of rational, or intelligent, life, but also about God's role in life elsewhere and if there may be an incarnational experience beyond Earth. Since 1992, over 4,000 exoplanets have been discovered orbiting stars light years beyond the solar sys