On January 28, 1986, NASA Challenger mission STS-51-L ended in tragedy when the shuttle exploded 73 seconds after takeoff. On board was physicist...
Akses tanpa had percuma, Cari apa sahaja Tanpa Iklan, Berjuta-juta tajuk dan ditambah setiap hari, Semua platform dan Dioptimumkan Sepenuhnya, Di mana sahaja dan bila-bila masa
