From climbing a famous peak in Yosemite National Park, to diving in Scapa Flow, the Orkney International Science Festival is sure to span a range of fascinating subjects. The many topical talks include an astronomical look at the Odyssey, recently brought to the big screen with Christopher Nolan’s epic new film. Images from the Euclid space telescope, showing the most distant stars ever seen, will be showcased by Professor Andy Taylor of the Royal Observatory Edinburgh. The cattle on Swona, which in isolation have gradually rediscovered ancestral herd patterns of behaviour, will be featured in a presentation. The festival takes place over the seven days from September 3-9, and the full programme and ticket links are on its website.