58K views · 970 reactions | A blast from the past -Challenger 1 loading drill. Remember- Projectile-Bag charge-Ram the vent tube-Close the breech-Pull the loaders firing guard to the rear-ensure safety switch is set to live and report "loaded" The Commanders verbal's at the end are not taught in Training #militaryhistory #military #Military | The Challenger | Facebook

Video zum Testbericht des 3D Indoor Doppeldecker Challenger von Multiplex

On the 30th anniversary of the Challenger disaster, here's a look at how NASA's first in-flight tragedy changed their shuttle program forever. http://cnn.it/1OZV9pD | CNN

8.4K views · 11K shares | Where were you when the Challenger exploded before America’s eyes?: This video takes you back 30 years to the tragic launch | Salon | Facebook

FROM THE ARCHIVES: 34 years ago this week, the Space Shuttle Challenger was lost 73 seconds into its 10th flight, killing all the astronauts on board. | NBC News