Today In Space

EXPLICIT MATERIAL POSSIBLE The Sierra Nevada Corporation Dream Chaser flight vehicle is readied for 60 mph tow tests at NASA's Dryden Flight Research Center on Aug. 2, 2013 Credit: NASA/Ken Ulbrich Alex talks about the postponing of SpaceX's CRS-5 mission to resupply the ISS and also talks about some other private companies and what they are doing to help bring the cost down for space travel and help make it safer. The companies discussed are Sierra Nevada Corporations (SNC) Space Systems and Blue Origins, LLC. Blue Origin’s pusher escape system rockets the Crew Capsule away from the launch pad, demonstrating a key safety system for both suborbital and orbital flights. Credit: Jeff Bezos, Blue Origins, LLC. Dream Chaser launches on an Atlas V rocket in this artist's conception. Credit: Mark Maxwell Over=head view comparison of the Space Shuttle (Right) and the Dream Chaser aircraft (Left) In the spirit of Christmas, Alex also demonstrates how the "horse-whinny" is done in that Christmas song - "Sleigh R