NASA’s newest mission, TRACERS, soon will begin studying how Earth’s magnetic shield protects our planet from the effects of space weather. Short for Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, the twin TRACERS spacecraft lifted off at 11:13 a.m. PDT (2:13 p.m. EDT) on Wednesday, July 23, 2025, aboard a SpaceX Falcon 9 rocket from Space Launch Complex 4 East at Vandenberg Space Force Base in California.

The journal Space Science Reviews is publishing a collection of articles about the University of Iowa-led Tandem Reconnection And Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission. This collection presents the science objectives of the mission, descriptions of the design and calibration of the plasma instruments, and other important aspects of the mission.

UI Physics and Astronomy Assistant Professor David Miles is developing a new magnetic-field instrument called MAGnetometers for Innovation and Capability (MAGIC). Miles said MAGIC will be a supplement, or an add-on, to the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission, which will strive to answer questions regarding space weather.  

A $115 million space mission awarded by NASA to the University of Iowa can now proceed in earnest. Called TRACERS, it will study interactions between the sun’s and Earth’s magnetic fields. NASA also approved an extra $7.6 million for a magnetic field instrument to be designed and built at Iowa, Called MAGnetometers for Innovation and Capability (MAGIC), the instrument is intended to demonstrate that Iowa can reliably manufacture a new magnetic-field instrument that meets NASA’s exacting standards.