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 is a constellation in the southern hemisphere, located near the centre of the Milky Way galaxy. It was one of the constellations introduced by the Greek astronomer Ptolemy in the 2nd century. Scorpius represents the scorpion that stung and killed Orion, the mythical hunter who boasted that he could kill any wild animal.