There is no conflict between science and religion. Conflict only arises from an incomplete knowledge of either science or religion, or both.
Russell M. NelsonWe know that Elijah did returnโat least twiceโafter Malachi's promise. At Christ's transfiguration, Elijah appeared on the mount to Peter, James, and John. At the Kirtland Temple, April 3, 1836, Elijah appeared to the Prophet and Oliver Cowdery and said, 'The keys of this dispensation are committed into your hands.'
Russell M. Nelson