I'm talking, of course about duct tape, also known as "American Tape" in some of the localities where I worked a few years back! Duct tape is truly wonderful for so many purposes in the field, from patching up boots that are on their last leg (eh!) to sealing sample tubes to holding together dead-ish stadia rods and trowels (all true stories!).
Well, it turns out, other scientists have been making good use of duct tape for years... in outer space!