(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] 2009 - John G. Wolbach Library and Information Center - Harvard ... [PAR] Jan 31, 2009 ... astronomy, and they include two awards for contributions to the study of ...... 
Astrophysicist Neil deGrasse Tyson of the American Museum of Natural ..... 
California and Cal Tech is building the Thirty Meter Telescope, dubbed TMT, ..... 
black holes, dark matter, dark energy and other things that are a complete.