The type of telescope commonly used for see through dust and gas clouds with the intention of studying new stars is a radio telescope, because raido telescopes can be used to take pictures of newborn stars that are inside a giant gas cloud (when stars are born they are in clouds of gas) and the event of fusion of gases that initiate the stars formation.
The radio telescopes are made of a radio receiver and an antenna system that is used for detect radio-frequency radiation (30MHz to 300GHz) from stars, galaxies, and other extraterrestrial sources. The use of frequency analyze can determine structures that are far away from our planet, and the fact that those telescopes read radio-frequency turn easy to differentiate material sources, like the gases that are linked to the formation of stars, and others space structures.