NASA’s Multi-slit Solar Explorer (MUSE) is a future solar space observatory that passed mission-level critical design review in 2025 for a targeted 2027 launch. Its multi-slit spectrometer will capture high-resolution extreme-ultraviolet observations of the solar transition region and corona to investigate coronal heating, solar-wind acceleration, flares, and coronal mass ejections.
Alerts for directly linked future launches and major activity.