European sun spacecraft spots mysterious switchback that speeds solar wind
The European sun-observing mission Solar Orbiter observed a mysterious "switchback" in the solar wind that might explain what propels particles from the sun across the solar system.
![European sun spacecraft spots mysterious switchback that speeds solar wind](http://cdn.mos.cms.futurecdn.net/HVRWYwxkPxWyb2pdPTd9A3.jpg?#)