Solar Sentinels

Sentinels is the NASA component of a joint NASA/ESA Heliophysical Explorers (HELEX) mission that also includes ESA's Solar Orbiter mission. Solar Orbiter will make near- Sun, out-of-ecliptic in situ and remote sensing measurements. NASA's Sentinels mission will make in situ observations from multiple platforms arrayed at varying radial distances and azimuth locations in the near-ecliptic plane.                                                                                                                                                                                         

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