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.
In the Northern Hemisphere, Scorpius lies close to the southern horizon; in the Southern Hemisphere, it lies high in the sky near the center of the Milky Way. 1  Right Ascension: 17 hours. 2  Declination: minus 40 degrees. 3  Visible between latitudes 40 and minus 90 degrees.