What was the Star of Bethlehem? (link to audio)

Leslie discusses the most likely astronomical possibilities for the phenomenon known as the "Christmas Star".

Cultivating a Personal Environmental Ethic (link to audio)

Leslie speaks at Baylor University, August 2009

Faith Integration in the Science Classroom (link to audio)

Leslie speaks at George Fox University, August 2008

I Have So Many Questions - Are There Any Good Answers? (download mp3)

Sometimes it seems like there are more questions than answers in life. At some point, most people wonder whether faith in God really makes sense. Let's look at a few of life's really big questions from a fresh perspective.