Visually Documenting the Space Shuttle Program

Apologies if this is a re-post, but I couldn't find it in my history.  This is a video put together by the folks who are responsible for documenting the space shuttle program.  Not only does the video contain amazing still & moving pictures, but these guys go into detail on how they are able to get such amazing shots.
This is well worth the full 45 minutes, especially in HD

Stirling Engine to the rescue

Because NASA is running out of Plutonium-238, a new method of power generation must be found.  Enter a 200-year old design: the Stirling Engine.  With this design, engineers are about to increase efficiency of this dwindling fuel.  Granted it isn't exactly like the one pictured below, it's still cool to see this type of design being used

Where do we explore in space

Cool infographic showing the scope of human space exploration.