根据提供的段落中的重点概念，生成一道相关问题。 
Astronomy is the study of celestial objects such as stars, planets, comets, and galaxies. One of the most important tools in modern astronomy is the telescope, which collects and analyzes electromagnetic radiation to gather information about these objects.
What is the role of a telescope in modern astronomy, and how does it enable astronomers to gather information about celestial objects?