Search for Extra-Terrestrial Intelligence (SETI), Citrus Division, takes the most puny of power sources and attempts something galactic in scale. Combining some scraps from the stationery cupboard and assorted junk from the shed, 65 lemons proclaim their presence to the great unknown. No mundane fruit here: this box of lemons powers a laser that sends a message to the stars. Placing themselves in the context of the universe they state their existence and reach for the heavens. Stephen Hawking recently warned that seeking contact with alien life was ‘extremely risky’; is this fruit prepared for the attention it could attract?