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.
The Sumerians also identified the constellation with the scorpion, or Gir-tab. Scorpius is depicted with its tail and sting poised in the air, ready to strike. The constellation Scorpius occupies an area of 497 square degrees and contains ten stars with known planets. It can be seen at latitudes between +40Â° and -90Â° and is best visible at 9 p.m. during the month of July. Astronomically, the Sun lingers in Scorpius only for a week, from November 23 to November 30, but most astrologers consider it to be in the sign of Scorpio from October 23 to November 23. In sidereal astrology, the Sun passes through Scorpio from November 16 to December 16.