What on Earth? is an American television program broadcast on Science Channel. It examines strange satellite imagery and speculates on what caused the strange phenomenon. The program debuted in February 2015. It was Science Channel's most watched program and was renewed for a third season in 2016 and a fourth season in 2017.

The series features Karen Bellinger, Brittany Brand, Mike Capps, Devin Dennie, Andrew Gough, Steven Kearney, Alan Lester, Jim Marrs, Rob Nelson, and Nick Pope.

In 2023, WOE returned for the twelfth season of episodes (1 -10) (Jan 12, 2023 thru March 16, 2023). As of September 3, 2024, the show had not been cancelled.