Read the excerpt from Chapter Three of Windows to the Universe: Revolutions in Astronomy.The discovery of infrared light opened new doors for astronomers, allowing them to see beyond what was possible with visible light. However, even with advancements in telescope technology, the Earth's atmosphere still poses significant challenges. To overcome issues like atmospheric distortion and light pollution, astronomers needed to take a huge leap forward and get telescopes beyond Earth. This led to the development of space telescopes.