Muon created by fast cosmic ray has speed 2.99X10^8 m/s and life time 2.2 micro sec. According to this numbers muon should travel only 0.66Km with respect to earth in his life time. however it travels more than 10 km (10.4km) due to time dilation. in muon frame of reference, earth travels only 0.66km. now if we consider muon created 20.8km above earth, so in muon frame of reference earth seems to be at distance 1.32km and if we consider one more muon created on earth exactly the first one decade. will the observer in first muon frame of reference see that earth cross him and then second muon decade and the observer on earth see that the observer in first muon frame still not crossed even though the second muon is decade ?