Even on a cloudy day, natural daylighting coming through the clerestories provides enough general lighting for the interior of the Exploratorium. Accent lighting is mostly provided by the exhibit displays, which have their own lighting sources. (Photo by Mignon O’Young)

Even on a cloudy day, natural daylighting coming through the clerestories provides enough general lighting for the interior of the Exploratorium. Accent lighting is mostly provided by the exhibit displays, which have their own lighting sources. (Photo by Mignon O’Young)

Even on a cloudy day, natural daylighting coming through the clerestories provides enough general lighting for the interior of the Exploratorium. Accent lighting is mostly provided by the exhibit displays, which have their own lighting sources. (Photo by Mignon O’Young)