From ‘bird leg syndrome’ to solar storms: Roberta Bondar breaks down Artemis II mission

Iranian officials are urging young people to form human chains around the country’s power plants, part of an effort to thwart U.S. attacks as President Donald Trump warned that a “whole civilization will die tonight” if Iran does not meet his administration’s latest deadline. Trump has been escalating his threats against Iran, saying U.S. forces would strike civilian infrastructure like power plants and bridges if the country does not reopen the Strait of Hormuz by 8 p.m. ET on Tuesday. The U.S. president has previously threatened to ramp up attacks on the regime if it failed to...