ICON and GOLD missions will study Earth's little-understood upper atmosphere. Here are some recent science and technology articles that have featured both missions, as the GOLD launch approaches in late January and ICON later this year:

• For the first time, a NASA mission to study space weather will live on a commercial satellite  in The Verge (technology news). This article quotes ICON principal investigator Thomas Immel.
• NASA launches a mission to study Earth’s final frontier—the edge of space in Ars Technica (technology and science news)
• New NASA mission will explore key zone between Earth and space at CNN (headline news)
• Looking ahead: space missions for 2018 at Sky and Telescope (astronomy news)