(I'm astrophysicist Neil deGrasse Tyson.) Some with billions, others with trilions of stars, these are the fundamental building blocks of visble matter in the universe; they come in many varieties including spiral, irregular & elliptical
[DOC] [TLE] Neil deGrasse Tyson - Wikipedia [PAR] Neil deGrasse Tyson is an American astrophysicist, cosmologist, author, and 
science ... From 1995 to 2005, Tyson wrote monthly essays in the "Universe" 
column for ... that imprint [of the night sky] that I'm certain that I had no choice in 
the matter, ... for people who come through the facility today, that others served 
for me".