China has a big space plan to hit an asteroidasteroid/ˈæstərɔɪd/L1太空中飞行的岩石，像一颗小行星a big rock that moves around in space with a spaceship. This test will help protectprotect/prəˈtekt/L1保护；防护to keep something safe from harm or danger Earth from space rocks, and the missionmission/ˈmɪʃən/L1特别重要的任务或计划an important job or plan that someone must do is very hard and important. It will happen in 2029.
Two spaceships will fly together. One will hit the asteroidasteroid/ˈæstərɔɪd/L1太空中飞行的岩石，像一颗小行星a big rock that moves around in space, and the other will watch. It will see the hit and the dust, then check the asteroid's path.
The asteroidasteroid/ˈæstərɔɪd/L1太空中飞行的岩石，像一颗小行星a big rock that moves around in space is small, only 30 meters wide, and its name is 2015 XF261. Finding it is a big job for scientistsscientists/ˈsaɪəntɪsts/L1科学家，研究世界如何运作的人people who study how things work in the world, so this is an excitingexciting/ɪkˈsaɪtɪŋ/L1让人感到兴奋和高兴的making you feel very happy and interested mission!
