An ice shelf in East Antarctica the size of Rome collapsed on March 15, the culmination of decades of an increasing warming trend seen at both of the planet’s poles. The collapse, announced in a tweet posted by Woods Hole Oceanographic Institute and NASA planetary scientist Catherine Walker, took scientists by surprise,read more

Russian forces have used hypersonic missiles to destroy ground targets in their invasion of Ukraine—the first time such weapons have been used in combat—and a quantity of radioactive material has disappeared from a monitoring lab near the defunct Chernobyl Nuclear Power Plant. On March 19 Russian defence ministry spokesman Majorread more