Design student Sneha Rao is developing Tact, an edible pregnancy test that allows people with vision impairment to feel its results on their tongues

Species with leaves large enough to be seen from space is already critically endangered – and plans are afoot to protect it A chance social media encounter has led to the race-against-time discovery of a new species of giant waterlily that has until now been hidden in the depths of Colombia’s jungle. But the plant, which is so huge it is visible from space, is already considered critically endangered. Continue reading...