Unmanned Russian Soyuz Blows Up On Launch
adagioforstrings writes "CNN reports that a 300-tonne unmanned Soyuz-U launch vehicle exploded 29 seconds after take-off from Russia's Arctic Plesetsk cosmodrome late on Tuesday, its blazing debris showering onto the launchpad and its blastwave killing one and injuring eight others. A modified version of this same kind of rocket will be used to carry cosmonauts to the ISS later this month."
As it says here, the R7 family is "..the most often used and most reliable launch vehicle in history".
The unmanned versions are built to a lower spec, as the cargo isn't as important as human life. Manned soyuz boosters continue to be the safest way into orbit.