NewsHour

The NewsHour with Jim Lehrer

January 31, 2007 in the Watch section

NewsHour with Jim Lehrer

Interviewed on PBS's NewsHour with Jim Lehrer regarding the International Astronomical Union's debate on Pluto's planethood.

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The NewsHour with Jim Lehrer

August 27, 2003 in the Watch section

PBS NewsHour

Interviewed on PBS's NewsHour with Jim Lehrer regarding the 2003 close encounter with Mars.

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