Decoding the Secrets of Solar Magnetism: NASA’s CMEx Mission Concept Study

Ball Aerospace, a leading aerospace technology company, has been chosen by NASA to conduct a concept study for the Chromospheric Magnetism Explorer (CMEx) mission. This groundbreaking mission aims to unlock new insights into the role of magnetism in driving solar activity and its impact on space, Earth, and other planets.
The CMEx mission concept revolves around a near ultraviolet spectropolarimeter, a state-of-the-art scientific instrument that will make novel observations of the sun’s magnetic field as it evolves from the photosphere through the chromosphere. By studying this magnetic energy buildup, scientists hope to gain a better understanding of solar flares, coronal mass ejections, and other eruptive activities that have a significant impact on space weather.
One of the key objectives of the CMEx mission is to identify the magnetic sources of solar wind. Currently, there is a discrepancy between observed magnetic flux near the solar surface and the magnetic flux measured near the Earth, known as the “open flux problem.” This discrepancy hampers the accuracy of space weather predictions. By addressing this problem, CMEx could significantly improve our ability to forecast space weather events and mitigate their potential impact on Earth.
Lisa Wood, senior director of Strategic Operations at Ball Aerospace, expressed excitement about the CMEx mission concept, stating, “The CMEx mission concept provides a unique opportunity to answer some of the biggest questions we still have about the sun, and it could help to mature our spectropolarimetry capabilities considerably.” Ball Aerospace’s involvement in the project includes managing the study, building the spectropolarimeter and spacecraft, and operating the mission.
Leading the nine-month study is Dr. Holly Gilbert, director of the National Center for Atmospheric Research’s (NCAR) High Altitude Observatory (HAO). If CMEx is selected for further development, the investigation will progress into detailed design and mission implementation. NCAR/HAO will take charge of the scientific mission, while Ball Aerospace will continue its legacy of providing cutting-edge hardware for NASA’s Explorers program.
In conclusion, NASA’s selection of Ball Aerospace to conduct the CMEx concept study marks a significant step forward in our quest to decode the secrets of solar magnetism. This mission holds the potential to revolutionize our understanding of the sun’s magnetic field and its influence on space weather. As humanity continues to explore the frontiers of space, CMEx could provide vital insights that help us navigate the challenges of our dynamic solar system.
