The Solar and Heliospheric Observatory is a joint space mission positioned at the Earth-Sun L1 Lagrange point. It carries a suite of instruments designed to monitor solar flares, coronal mass ejections, and the solar wind in real time. Space weather forecasters rely heavily on its continuous data stream to warn satellite operators and power grids of incoming geomagnetic storms.
Heard on the job
SOHO just detected a massive coronal mass ejection heading our way, so expect some satellite drag issues by Tuesday.