Explorations – The 400th anniversary of the telescope

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Guest: Dr. Ken Croswell discusses the 400th anniversary of the telescope, the most revolutionary instrument of science.

Science summary of 2008:
1) Pres. Obama might reverse Pres. Bush's policies on stem cells/global warming
2) LHC/black hole controversy
3) Chinese astronauts do a space walk
4) Ice found by rovers on Mars
5) NASA photographs extra-solar planets