A globetrotting garden gnome has been helping scientists in a worldwide experiment on weight!
Kern has travelled the planet - including Japan, Australia and the South Pole - and been weighed everywhere he's been.
The research team's found a slight difference in Kern's weight across the different locations.
It's because weight is affected by the force of gravity - and that varies across the globe.
Hayley went to meet Kern to find out more...