下面小编跟大家一起了解英语四级新闻听力文章分享，希望对大家的学习有所帮助。 1. A. 24 satellites B. An atomic clock. C. A solar sail project. D. Astronauts. 2. A. The U.S. Department of Defense. B. The U.S. space agency NASA C. American space company SpaceX. D. American universities. 二、听力文本 American space company SpaceX has successfully launched its large Falcon Heavy rocket on a flight to deploy 24 satellites. The rocket lifted off early Tuesday morning from Florida's Kennedy Space Center. The Falcon Heavy is considered the world's most powerful operating rocket. It was the third successful flight of a Falcon Heavy rocket. The U.S. Department of Defense ordered the current mission. The satellites will be used for experiments involving several U.S. government agencies, as well as some university projects. SpaceX uses reusable rockets to reduce the cost of space travel for its customers. These include government and military agencies, the U.S. space agency NASA and private companies. In addition to the satellites, the Falcon Heavy carried an atomic clock built by NASA, a solar sail project and even human ashes. The Deep Space Atomic Clock is a technology experiment aimed at giving spacecraft self-flying abilities in the future. The solar sail project was led by the U.S.-based Planetary Society. The goal of the group's LightSail is to become the first orbiting spacecraft to be powered completely by sunlight. The Falcon Heavy is the most powerful rocket in use today. Each first-stage booster has nine engines, for a total of 27 firing at the same time during liftoff. SpaceX says the rocket has the ability to lift nearly 64 metric tons into orbit.
