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)

AGU’s Fall Meeting is the largest Earth and space science meeting in the world and this year takes place in New Orleans, Dec. 11-15. Click on Read More to see a compilation of ICON or GOLD-related sessions, posters and the SPA Town Hall (Monday night).

Congratulations to Joe Huba, ICON Co-Investigator, who will be presenting the 2017 Nicolet Lecture on Tuesday.

The ICON mission is proceeding apace. High fives are in order since the team just completed its fourth operational readiness test (ORT). During an ORT, a dozen SSL Mission Operation Team Members join forces with two dozen spacecraft engineers from Orbital ATK to rehearse the first week of activities that will occur during ICON’s launch and early orbit. It’s an entire week of long days and intensive testing in ICON’s Mission Operations Center at the UC Berkeley Space Sciences Lab, to simulate operation of the observatory. Spurred along by the fact that this was the final ORT before launch, the team worked together to bring it to a healthy and successful completion (simulating operations with a failed momentum wheel, no less). The next time these teams come together at SSL will be the actual launch day for ICON.

ICON carries four different instruments to explore Earth's upper atmosphere. The MIGHTI instrument, an example of an interferometer, looks at winds and temperatures in the ionosphere. In this video,  Drs. John Harlander and Chris Englert explain what an interferometer is and what MIGHTI will be investigating.

"The atmosphere naturally just glows at those altitudes, more during the day and less during the night...and by just looking at the color of this airglow, we can find out about the wind and the temperature. So the atmosphere... is helping us to understand how it is behaving by sending out this airglow. If we build the right instruments to look at particular aspects of the color of the airglow, we can get information that we want."
—  Dr. Chris Englert, MIGHTI instrument lead