THE appearance of these two little books shows that practical teachers have not yet agreed upon the best method of teaching elementary geometry. That this should be so is by no means a matter for ...

“All of the science we designed [Euclid] for is starting to roll out exactly and even better than we would have hoped,” says Adam Amara, the U.K. Space Agency’s chief scientist, to Ian Sampl ...

“Euclid shows itself once again to be the ultimate discovery machine. It is surveying galaxies on the grandest scale, enabling us to explore our cosmic history and the invisible forces shaping our ...