Darkroom photo-developing secrets

When to use this chart 1 December at 00:00 UT 15 December at 23:00 UT 31 December at 22:00 UT On other dates, stars will be in slightly different positions because of Earth’s orbital motion. Stars tha

Predicting the future is considered a fool’s game. But it’s one many of us like to play. And seeing as we asked a selection of experts about the biggest breakthroughs of the century so far (p38), we c

Many birds have fabulous plumage to attract mates or send warning messages. Some of the colours in their feathers are produced by microscopic structures on the feather surface that absorb and reflect

IN PORTUGAL’S WILD NORTHERN BORDERLANDS, SURVIVAL AND SPIRITUALITY GO HAND IN HAND WITH THE CHANGING SEASONS, AS THEY HAVE FOR MILLENNIA. A ROAD TRIP THROUGH ITS REMOTE REACHES UNCOVERS PAGAN FESTIVALS, AGE-OLD CRAFTS AND ROMAN RELICS IN THE COUNTRY’S ONLY NATIONAL PARK, PENEDA-GERÊS