Coronal rain is the most dramatic display of cooling in the Sun’s corona. It corresponds to cool and dense clumps of plasma appearing over a timescale of minutes in the corona, that preferentially fall towards the solar surface along coronal loops. Now, solar astronomers using ESA’s Solar Orbiter have observed a never-before-seen ‘fireball’ phenomenon occurring within the coronal rain. This image, taken with ESA’s Solar Orbiter on April...
