Neil deGrasse Tyson

Mar. 02, 2012

Neil deGrasse Tyson On Exploring Cosmic Frontiers

In Space Chronicles, Tyson argues that space exploration is vital to human progress.

space, astronomy, exploration

Feb. 13, 2009

Neil deGrasse Tyson

Ira talks with astronomer Neil deGrasse Tyson about Pluto, teaching science, and more.

space, astronomy, tyson

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Michael Pollan Talks Plants and Food

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Baby, It's Cold Outside

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Snowflake Safari

\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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