Toxic air pollutants are poisonous substances in the air that come from natural sources (for example, radon gas coming up from the ground) or from manmade sources (for example, chemical compounds given off by factory smokestacks) and can harm the environment or your health.
Subsequently, Scorpius X-1 was discovered in 1962 by a team, under Riccardo Giacconi, who launched an Aerobee 150 sounding rocket carrying a highly sensitive soft X-ray detector designed by Frank Paolini.
Scorpius contains a number of notable stars and deep sky objects; among them, the bright stars Antares and Shaula, the Butterfly Cluster (Messier 6), the Ptolemy Cluster (Messier 7), Catâs Paw Nebula (NGC 6334), the Butterfly Nebula (NGC 6302), and the War and Peace Nebula (NGC 6357).