How a huge fleet of 17 spacecraft discovered something surprising about solar eruptions

A misbehaving coronal mass ejection (CME) that blew out a hidden cloud of charged particles aimed at Earth has been tracked by a record 17 spacecraft spread throughout the solar system, revealing the CME to be surprisingly lopsided.CMEs are "burps" from the sun – huge clouds of magnetized plasma belched out from the sun's hot outer atmosphere, the corona, by the energy resulting from a solar flare. The magnetized CME cloud then expands out into the solar system, and the charged particles t