Conditions in space are so very different than that of earth. When you think of hot, you think red, right? Not so in space. A hot star is blue and a yellow or whitish star is cooler. On this week's SkyTalk, WHYY's Dave Heller and Chief Astronomer Derrick Pitts find out how stars get started and generate energy.Image Credit: NASA and Michael Rich (UCLA)Listen:Click on the play button below or right click on this link and choose "Save Link As" to download.
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