CNN 's Chandler Friedman , Kevin Conlon , Jareen Imam and Dave Alsup contributed to this report . Explosion shows space travel `` a really tough business , '' NASA official says . Spacecraft , rocket alone cost over $ 200 million , Orbital Sciences exec says . Comment: The spacecraft burst into flames seconds after liftoff ; no injuries are reported .
Explosion shows space travel `` a really tough business , '' NASA official says . Spacecraft , rocket alone cost over $ 200 million , Orbital Sciences exec says . Comment: The spacecraft burst into flames seconds after liftoff ; no injuries are reported .