Even casual observers of the night sky are familiar with the winter constellation Orion. It's two brightest stars, Rigel and Betelgeuse and its three belt stars make it an easy one to spot. But one of them has dimmed dramatically in recent months, the red supergiant star Betelgeuse.

Blue Dot 172: BETELGEUSE: Mystery Of A Dimming Supergiant

Blue Dot, named after Carl Sagan's famous speech about our place in the universe, features interviews with guests from all over the regional, national and worldwide scientific communities. Host Dave Schlom leads discussions about the issues science is helping us address with experts who shed light on climate change, space exploration, astronomy, technology and much more. Dave asks us to remember: from deep space, we all live on a pale, blue dot.

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Blue Dot 172: BETELGEUSE: Mystery Of A Dimming Supergiant

Blue Dot 172: BETELGEUSE: Mystery Of A Dimming Supergiant

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