by Roger Balettie | Aug 19, 2013 | NASA, Space
Noctilucent Clouds and you A good friend recently posted this YouTube video on my FB page showing a rare video with *both* Noctilucent Clouds and the Aurora Borealis. Noctilucent Clouds (NLCs, also called Polar Mesospheric Clouds) are clouds made of extremely small...
by Roger Balettie | Aug 13, 2013 | NASA, Space
Orbital Velocity… and great analogies One of my favorite web-comics, xkcd, did an excellent piece titled “Orbital Speed”, in which they answered a few readers’ questions: t What if a spacecraft slowed down on re-entry to just a few miles per...
by Roger Balettie | Aug 4, 2013 | NASA
The Free Frontier What, exactly, is the “Free Frontier”? Conservative commentator Bill Whittle has always been a favorite of mine. He put out a great commentary video a couple of years ago on the state of the US Space Program. Unlike some of his other...
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