Observing protoplanetary disks is challenging due to their distance and the faintness of the light they emit. However, advancements in technology have allowed astronomers to study these disks using various methods. Telescopes like the Hubble Space Telescope and the Atacama Large Millimeter/submillimeter Array (ALMA) have provided detailed images and spectra of protoplanetary disks. These observations help us understand disk structure, composition, and the processes occurring within them.