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TRACERS (Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites)

    NASA’s TRACERS Spacecraft Arrive at Launch Site

    Editor’s note: This post has been updated on June 17, 2025, with more information on the target launch date. NASA’s TRACERS (Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites) twin spacecraft have completed the final pre-shipment tests and have arrived at Vandenberg Space Force Base in California in preparations for launch later this year. The TRACERS […]

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    NASA’s TRACERS Mission Now Targeting No Earlier Than Summer for Launch

    An artist's concept showing TRACERS above Earth. TRACERS is twin satellites, both gray and octagonal, with four poles sticking outward horizontally.

    NASA’s TRACERS (Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites) now is targeting no earlier than summer 2025 for launch in order to give the mission spacecraft team additional time to prepare. The mission is a pair of satellites that will study how the solar wind — the continuous stream of ionized particles escaping the Sun […]

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    NASA’s TRACERS Mission Passes Key Milestone, Advances Toward Launch

    Animated graphic showing solar wind blowing against giant magnetic bubble surrounding Earth, with two funnels in the bubble at the north and south poles

    NASA's Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites mission, or TRACERS mission, has passed a critical mission review on March 31, 2022. The mission now moves into its next phase, advancing towards its target launch readiness date of July 27, 2024. "We're excited to pass this major milestone and get one step closer to launch," …

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