RT @SPACEFLIGHT101: 30 minutes to Liftoff. A Soyuz 2-1A Launch Vehicle Overview: bit.ly/Psb0Ah & a Soyuz Countdown Timeline …
RT @SPACEFLIGHT101: 30 minutes to Liftoff. A Soyuz 2-1A Launch Vehicle Overview: bit.ly/Psb0Ah & a Soyuz Countdown Timeline …