Answer:
Telescopes use lenses or mirrors to collect and focus on the waves from the electromagnetic spectrum, including visible light, this allows astronomers to look at stars. By using telescopes for studying the electromagnetic waves given off by objects such as stars, galaxies, and black holes, scientists can have a better understanding of the universe.
Step-by-step explanation:
Telescopes use lenses to collect and focus on the waves from the electromagnetic spectrum, including visible light, his allows astronomers to look at stars. By using telescopes for studying the electromagnetic waves given off by objects such as stars, galaxies, and black holes, astronomers and scientists can have a better understanding of the universe. Astronomers can learn about the composition, structure, and motion of stars in the universe using radio waves and visible light in the electromagnetic spectrum.