Jannik Sinner topples Daniil Medvedev to reach US Open semifinals

Hours after the news broke on Wednesday that the United States had picked up worrisome intelligence about Russia’s capacity to strike American satellites, the Pentagon sent a missile-tracking system into orbit, part of a vast new effort to bolster the military’s growing presence in space. The timing was coincidental. But…

LONDON — When Boris Johnson hit energy companies with a windfall tax last week as a way of providing more aid for struggling consumers, it was a bittersweet moment for the opposition Labour Party, which had been promoting just such a plan for months. For once, Labour could claim to…

The police in Perth, Australia, fatally shot a 16-year-old boy who had stabbed a man in a parking lot and who officials said had been on their radar for suspicion of having extremist tendencies. The shooting happened shortly after 10 p.m. Saturday, and occurred after the police in Western Australia…

Despite another stinging defeat, this time on her home turf in South Carolina, Nikki Haley said on Saturday that she would forge ahead in the Republican primary race regardless of the daunting road ahead. Speaking to several hundred supporters at her watch party in a ballroom in Charleston, S.C., Ms….

Here’s what to know as the trial continues this week. Who were the victims? At the time of the attack, the Tree of Life*Or L’Simcha synagogue, which sits in a neighborhood with a rich Jewish history, was home to three separate congregations, all of which were gathering for services in…