What’s lighting up the sky? These crepuscular rays fan out from behind a mountain at sunrise over Lake Garda, Italy. Though they seem to converge, they're nearly parallel beams of sunlight streaming through cloud gaps and scattering in the atmosphere. Not a traditional astrophotograph — no stars or galaxies — but a reminder that the Sun is a star, and its light interacting with Earth’s air creates stunning optical effects that connect us to the cosmos. Location: San Felice del Benaco, Lake Garda, Italy