The 41-year-old agreed to show Fred around the European Space Agency's training facility because he was inspired to study science by the presenter's ITV programme 'How' as a child.
More top news
Martin has the forecast for the east of the ITV Meridian region.
Martin Stew has Friday's weather forecast for the west of the ITV Meridian region.
Friday's forecast for the west of the region from Martin Stew.