Perihelion — Helia-1 flies into the storm

Perihelion is the campaign site for Helia-1, a fictional heliophysics probe that flies into a coronal mass ejection. The sun is not a steady lamp — it is weather, and you live inside it.

Touch the photosphere and stir convection cells the size of Texas. Watch differential rotation wind the magnetic field like a spring until it snaps — magnetic reconnection — and throws a billion tons of fire off the limb. Ride the ejecta at 1.5 million kilometres per hour toward Earth, watch the magnetosphere take the hit, and arrive under the aurora the storm becomes. The mission is fiction. The physics is real.