Shot of the month

Let your running loose

Sun, sangria and… solar eclipses? Over the next few years, Spain will offer front-row seats to some of the most spectacular celestial shows on Earth, with three ‘central’ – that is, total or annular –

Planetary physicist Dr Sheila Kanani on why now is the time to spot shooting stars and a sunlit Saturn

Wildly fluctuating temperatures, punishing verticality, brushes with mountain lions – the Grand Canyon’s Rim to Rim to Rim endurance run is not for the faint-hearted. Duncan Craig takes on the ‘big red ditch’

Spotlight on readers’ excellent images and how they captured them

Alíz Kovács-Zöldi considers…