Just above the surface of the Sun lies the relatively cool photosphere, at around 6000 K, but it turns out to host some remarkably hot explosions. Using the Interface Region Imaging Spectrograph (IRIS), Hardi Peter of the Max Planck Institute for Solar System Research in Göttingen and colleagues report pockets of plasma heated to almost 100,000 K for a few minutes. Presumably from magnetic reconnection, these explosions have 0.1–1% of the energy of a flare, making the brightest ones an order of magnitude more energetic than the microflares known as "Ellerman bombs". This new finding contributes to an ever more complex view of the photosphere.