translation.en: Radio astronomers study radio waves from space using sensitive antennas and receivers, which give them precise information about what an astronomical object is and where it is in our night sky.
translation.zh: 射电天文学家们 用灵敏的天线和接收器 研究来自太空的无线电波， 这能给他们准确信息， 了解一个天体是什么 在夜空中的何处。