Apparently, Toronto is going to be graced with some 3000 educational signs on Toronto Transit Commission vehicles.  The signs are both easy on the eyes and educational.  Check out CoolCosmos for more examples.


And while I am on the topic of supernovae, astronomers at the Chandra X-Ray observatory have just released a time lag video of the continued expansion of Cassiopeia A, a supernova remnant.  You can read all about it from Scientific Blogging's News Staff.

Thanks to Phil Plait at Bad Astronomy, on whom I generally rely for things both cool and astronomical, for originally bringing these to my attention.