Scientists Discovered the Edge of Space.

It is really for your surprise: Scientists have ultimately located the so-called boundary of space - the edge between outer space and Earth's atmosphere. At University of Calgary, scientists developed a new instrument (Supra-Thermal Ion Imager) for this purpose and with the help of this instrument they confirmed that the space begins 73 miles above the Earth's surface. This finding allows us to gauge energy flows into our planet's atmosphere and may be able to understand the relations between our environment and outer space. It means a better understanding of the connection between sunspots and the cooling and warming of the Earth's temperature as well as the space weather forces the satellites, communications and navigation.

Earlier, this boundary is surrounded by a mass of misconceptions and confusing, contradictory definitions. Theodore von Kármán, an eminent scientist, long ago intended that at this altitude of the so called atmosphere is so thin that it's insignificant, and traditional aircraft may no longer fly because it can't go fast enough to get any kind of aerodynamic lift. But this boundary acknowledged by most in the space industry is also a somewhat arbitrary 62 miles. This, 62-mile 'boundary' is acknowledged by the FAI (Federation Aeronautique Internationale), which sets aeronautical standards. However, according to the NASA, United States has never officially approved a set boundary standard because it would make matters worse the issue of overflight rights of satellites and other orbiting bodies. NASA states that their mission control uses 76 miles as their re-entry altitude because that's where the space craft switches from steering with thrusters to maneuvering with air surfaces. Most others pointed out that the edge begins at 13 million miles (21 million km) because that's the boundary where our planet's gravity is no longer prevailing. But How the Astronauts experiencing weightlessness in these area? This isn't because there's zero gravity there, it's due to the balance of forces acting on them as they orbit

The ability to collect data in that area is significant because it's very hard to make measurements in this area, which is too low for satellites and too high for ballons. The Supra Thermal Ion Imager was carried by the JOULE-II launch vehicle on Jan 19, 2007. It climbed to an altitude of about 124 miles above the sea level and gathered data for five minutes it was moving through the 'edge of space'. The instrument STII detected the edge by tracking the relatively gentle winds of our atmosphere and the more violent flows of charged particles in space, which can reach speeds well over 600 mph. The finding, detailed in the Geophysical Research Journal on April 7, could help the study of space weather and its impacts on Earth.