A gigantic solar storm occurring on the surface of the sun — and the torrent of charged plasma particles that it unleashed on Earth — have been causing headaches for airlines. But relief is on the way, a NASA research scientist says.

The problems began Sunday night when radiation bombarded the Earth within hours of a large explosion on the sun’s surface. Spikes in space radiation mean problems for polar flights, Antti Pulkkinen of NASA told The Times on Wednesday.

Delta has rerouted eight transpolar flights, Bloomberg reports, and Qantas and Air Canada also shifted the path of some flights following the solar flare. Flights diverted included several between cities in the Midwest, such as Detroit, and Asian hubs, according to IB Traveler.