Today, florists sell roses in a range of colours including red, purple, yellow — and even painted with blue or multi-coloured dyes. But what colour were the first roses? A large genomic analysis ...

The large "O" on Skinner Butte above the University of Oregon in Eugene has been splattered with red paint on the eve of Ohio State's rematch with the No. 1 Ducks in the Rose Bowl on New Year's Day.