In recent years, Nye has spoken publicly in favor of secular evolution and published a book in defense of it. Earlier this month, Nye began answering a range of submitted questions through the YouTube channel Big Think. Described as “Dear Abby” for geeks, his videos have addressed topics from homosexuality to intelligent design.

The latest video dealt with abortion, a topic that has gained increased national prominence following the release of undercover videos alleging illegal fetal tissue sales by Planned Parenthood. The videos, produced by the Center for Medical Progress (CMP), have prompted state investigations into abortion facilities and caused Congress to ...