ACES II Fact Sheet
![Aurora Current and Electrodynamics Structures II instrument being launched](https://www.ssl.berkeley.edu/wp-content/uploads/2023/02/ACES-II-WFF-2022-085-322-683x1024.jpg)
ACES II is a NASA-funded rocket mission to measure the global electric circuit underlying the northern lights.
THEMIS Fact Sheet
![](https://www.ssl.berkeley.edu/wp-content/uploads/2019/03/THEMIS_logo-1024x693.png)
THEMIS studies how mass and energy move through the near-Earth space environment to determine the physical processes initiating auroras.
ICON Fact Sheet
![](https://www.ssl.berkeley.edu/wp-content/uploads/2019/09/ICON-Artist.jpg)
The goal of the ICON mission is to understand the tug-of-war between Earth’s atmosphere and the space environment.