Saul Perlmutter

May. 10, 2013

Exploring an Ever-Expanding Universe

Saul Perlmutter discusses his Nobel Prize-winning work measuring the accelerating expansion of the universe.

space, astronomy, astrophysics, cosmology, galaxies, supernova, supernovae, expansion of the universe, saul perlmutter, adam riess,nobel prize

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\tWinter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates, and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake.

\tVideo originally published on ScienceFriday.com on December 31, 2009

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