NASA spacecraft detect a mysterious force shaping the solar wind

NASA’s Magnetospheric Multiscale Mission has uncovered surprising behavior of pickup ions drifting through the solar wind near Earth. These particles, once thought to be minor players, appear capable of generating waves and influencing how the solar wind heats and evolves. If true, it could force scientists to revise models of solar system dynamics, with implications reaching all the way to the edge of the heliosphere.