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Ever wanted to understand Dark Matter with animation?

Projected density plot of a redshift z=2.5 dar...

Image via Wikipedia

Geek Out:. This is a fairly basic but helpful way to understand Dark Matter. Some concepts in life are just so huge. The idea that there is more matter we can’t see than matter we can see is mind-boggling. Click on the link above to watch the video.

End of an era for Shuttle Atlantis

Space-Shuttle-Atlantis-Lanceerplatform

Image via Wikipedia

This is a sad event.  It is totally necessary due to safety, costs and other concerns, but the shuttle has been a large part of my life.  It has enabled the small steps we are taking to the stars.  I wonder how the next generation will take us the next step.