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.
A Roman fort subsequently named Castellum Emmaus (from the Latin root castra, meaning encampment) was discovered at the site in 1099 by the Crusaders. However, there is no source from the Roman, Byzantine or Early Muslim periods naming it as Emmaus for the time of Jesus.