Do you play any instruments? <a href=" http://theweebsite.com/tempus/ ">colours 60 mg tamoxifen sir dream</a> One commonly referenced boundary of space is the Karman Line, named for Hungarian American scientist Theodore von Karman. That&rsquo;s at 100 kilometers, or about 62 miles, and is approximately the altitude above which aerodynamic flight is impossible, even in theory.