Creative Commons: Jeff Dlouhy

The ever-delightful Ig Nobel award ceremony—which, in their words, honor achievements that make people laugh then make people think—is Thursday. For the 25th year! In honor of the anniversary, we highlighted a few of our favorite Ig Nobel awards in the current issue of Popular Science.

You can watch this year’s ceremony right here:

Festivities begin at 6 p.m. Eastern on September 17.