The Global-scale Observations of the Limb and Disk (GOLD) mission is a planned Heliophysics Mission of Opportunity (MOO) for NASA’s Explorer program. Led by Richard Eastes at the Florida Space Institute, which is located at the University of Central Florida (UCF), GOLD will provide a new capability for imaging the boundary between Earth and space in order to answer key questions about the effects of solar and atmospheric variability on the Earth’s space weather. GOLD was one of 11 proposals selected, of the 42 submitted, for further study in September 2011. On April 12, 2013, NASA announced that GOLD, along with The Ionospheric Connection Explorer (ICON), had been selected for flight in 2017.