The sky transitions to evening with hues of coral and lavender, as the sun sets behind mountain peaks, turning snow-capped ...

At sunrise and sunset, the light passes through more air and more atmosphere ... on the planet with the most beautiful sunsets – for a truly extraordinary red sky, nature needs a little bit of help.

Housman called the ‘valiant air of dawn’, the sky becomes a painting ... They were published in the science journal Nature and were, together with a few minor poems, the only work he had published ...