Washington, April 10: Using data received from a instrument sent to space on a NASA launch from Alaska about two years ago, scientists have located the ‘edge of space’, and have confirmed that it begins 118 km above Earth.
The instrument – called the Supra-Thermal Ion Imager – was carried by the JOULE-II rocket on January 19, 2007.
It traveled to an altitude of about 200 kilometers above sea level and collected data for the five minutes it was moving through the “edge of space.”