NASA’S PUNCH Mission

NASA’s Polarimeter to Unify the Corona and Heliosphere, or PUNCH mission, is a constellation of four small satellites in low Earth orbit that will make global, 3D observations of the Sun’s corona to better understand how the mass and energy there becomes the solar wind that fills the solar system.

Watch the video to learn how imaging the Sun’s corona and the solar wind together will help scientists better understand the entire inner heliosphere — Sun, solar wind, and Earth — as a single connected system.