Supermarket price promotions are more likely to lead to an increase in sales of less healthy foods than healthier choices in supermarkets, according to a study published today. However, the study of shopping patterns amongst almost 27,000 UK households found that supermarkets were no more likely to promote less healthy over healthier foods.

New maps from the Planck satellite uncover the ‘polarised’ light from the early Universe across the entire sky, revealing that the first stars formed much later than previously thought.