来自MSN15 天
NASA wants to launch rockets into northern lights to study 'black auroras'
NASA plans to fly two rockets through active auroras and study the unique ribbons of light that dance across the Alaskan ...
Medicine Buffalo3 年
Not Your Grandfather’s Rockets
It will also support the training of a new, more diverse generation of rocket scientists. Historically, there have been two types of rocket systems: liquid and solid. Although each system is effective ...