Emirates' Hope spacecraft is first of 3 to reach Mars this month, opening new era in exploration By William Harwood NASA launches Mars rover for historic mission United Arab Emirates' Hope spacecraft, the first interplanetary probe launched by an Arab nation, braked into orbit around Mars Tuesday, kicking off an ambitious mission to probe the red planet's atmosphere and provide a "moonshot moment" for the youth of the Middle East. Racing toward its target at more than 46,000 mph, Hope's flight computer ignited the spacecraft's thrusters at 10:30 a.m. EST for a nerve-wracki...