For those who have seen the new cover, it is very interesting.  
 
 I am in love with astronomy so I had to smile when I saw the cover.  This
 interesting looking image is not some artists work but something found in
 space.  It is a 'Planetary Nebulae'.  This particular nebula is known to
 astronomers as the "Hourglass Nebula' (MyCn 18).  This Hourglass nebula is
 8000 light years away and this photo was taken by the Hubble Space
 Telescope about 7 years ago.  There is a shape that appears to be a eye in
 the center of it, which Pearl Jam did not add, this is the actual image of
 this nebula.  
 
 Oh, sorry, a planetary nebula is basically this, it has nothing to do with
 planets, that is very misleading.  It is basically a star who reaches the
 end of its life cycle.  Once this happens, it swells up to a huge size (Ex.
 Our Sun would expand out to around Mars's orbit when it dies -  dont worry,
 not for another 4.5 million years).  Once it swells to this size, some
 stars matter basically starts to float off into space because of a lack of
 gravity.  The small black circle in the center of the nebula (Binaural
 album conver) is something called a white dwarf (yes, i know its not
 white).  That is just a very dense hot star which shinks down to about
 1/1000 the radius of our sun, or the size of Earth.  (Still very dense
 though, 1 tablespoon of this matter would be equal to about 100 (or 1000?)
 tons on Earth.