Wild started Retronaut in January 2010, sharing daily archival images that show "the past like you wouldn't believe". As Wild has described, during his time working in museums and archives: "there were some objects and pictures I saw that for me had an enormous and seemingly untapped power – a power to disrupt our sense of time, to dissolve the barrier between present and past. I figured that if I could harness that power, I might be able to build something akin to a time-machine. Hence Retronaut." In its article on Retronaut,
Fast Company wrote: "the images on Retronaut are chosen to make the viewer feel like they’re looking not at the past, but rather at a different version of the present" In November 2013, Retronaut was listed by
The Times as one of "The 50 people you should follow on Twitter". In August 2014,
Mashable announced that Wild had joined Mashable's editorial team and that from September 2014, Mashable would be the exclusive online home of the Retronaut brand of historical photo curation. In August 2015, Retronaut was announced as a finalist in the 2015
Online Journalism Awards. Retronaut began a new licensing deal with US site Considerable in November 2018. Wild and Retronaut collaborated with print and card makers Prelogram on a series of exclusive Retronaut cards in Fall 2015. In September 2016, Retronaut became a curating partner for
Meural's digital canvas, showcasing a new collection each month. ==Curator==