The Sun is watched using six instruments, including the Polarimetric and Helioseismic Imager (PHI) and the Extreme Ultraviolet Imager (EUI). These take pictures that peel away layers and "reveal its ...
Sun spots look like holes on a smooth surface. Source: ESA & NASA/Solar Orbiter/PHI Team The Solar Orbiter spacecraft, which was launched in 2020 as part of a joint ESA and NASA mission, has captured ...