The hottest stars and the dust that scatters their lightCredit: data from GALEX and Swift-UVOT (NASA), FIMS/SPEAR (KASI), TD-1 (ESRO), Planck and Gaia (ESA)StarlightCredit: Gaia DR3 · ESA/Gaia/DPACDust glowing at 12 µmCredit: WISE 12 µm (NASA/JPL-Caltech) · WSSA mapThe Earth’s ozone layer, seen in back-scattered ultravioletCredit: Aura/OMI total ozone, October 2024 (NASA NEO) · north of 78°N extrapolatedThe Earth at nightCredit: NASA Black Marble 2016The Earth glowing with its own heat: July surface temperatureCredit: MODIS land surface temperature (NASA NEO)The whole sky in a Mollweide projection, Galactic centre in the middle. The ultraviolet map (colour follows the far-UV/near-UV ratio: violet-blue where the far-UV 154 nm is strong, pale gold where the near-UV 232 nm dominates) was built with Claude Science from public data of GALEX, Swift, FIMS/SPEAR, TD-1, Gaia and Planck; the switch compares it with the same sky in other light, or turns the view around to the Earth in the same three bands.