Astronomy Cast
Astronomy Cast offers you a fact based journey through the cosmos. Each week Fraser Cain (Universe Today) and Dr. Pamela Gay (SIUE / Slacker Astronomy) take on topics ranging from the nearby planets to ubiquitous dark matter.
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Ep. 109: The Life of Other Stars
Last week we looked at the complete life of the ...
Last week we looked at the complete life of the Sun, birth to death. But stars can be smaller, and stars can get much much larger. And with a change in mass, their lives change too. Let's start the clock again, and see what happens to the smallest stars i
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Questions Show - Running Out of Gravitons and Hitting the Brakes at Light Speed
Another week, another roundup of your questions. This week listeners ...
Another week, another roundup of your questions. This week listeners asked: if forces are communicated through particles, can we run out? If you were traveling at light speed, when would you know to stop? And there's even more. If you've got a question fo
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Ep. 108: The Life of the Sun
We've talked about the Sun before, but this time we're ...
We've talked about the Sun before, but this time we're going to look at the entire life cycle of the Sun, and all the stages it's going to go through: solar nebula, protostar, main sequence, red giant, white dwarf, and more. Want to know what the future h
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Questions Show - light speed, Andromeda galaxy, dark matter and black holes
Another week, another roundup of your questions. This week listeners ...
Another week, another roundup of your questions. This week listeners asked: will reaching light speed destroy the Universe? When is Andromeda going to look really, really cool with the unaided eye? Why didn't dark matter all turn into black holes? And the
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Ep. 107: Nucleosynthesis: Elements from Stars
Look around you. Breathe in some air. Everything you can ...
Look around you. Breathe in some air. Everything you can see and feel was formed in a star. Today we'll examine that long journey that matter has gone through, forged and re-forged in the hearts of stars. In fact, the device you're using to listen to this
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Questions Show - Black Hole Surfaces, Magnetic Field Strengths, and the Speed of Gravitons
As you know, we wanted to answer listener questions regularly, ...
As you know, we wanted to answer listener questions regularly, but we found it was taking away from the regular weekly episodes of Astronomy Cast. So we've decided to just split it up and run the question shows separately from the regular Astronomy Cast e
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Ep. 106: The Search for the Theory of Everything
At the earliest moments of the Universe, there were no ...
At the earliest moments of the Universe, there were no separate forces, energy or matter. It was all just the same stuff. And then the different forces froze out, differentiating into electromagnetism, the strong force and the weak force. Today we'll look
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Student Questions Show: Leelanau School
This is our forth installment in our series of student ...
This is our forth installment in our series of student questions shows and these questions come to us from Leelanau High School.
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Ep. 105: The Strong and Weak Nuclear Forces
After a quick Dragon*Con break, we're back to our tour ...
After a quick Dragon*Con break, we're back to our tour through the fundamental forces of the Universe. We've covered gravity and electromagnetism, and now we're moving onto the strong and weak nuclear forces. We didn't think they'd really need to be separ
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Ep. 104: Science Fiction at Dragon*Con with Plait and Grazier
Pamela left Fraser behind (with sorrow) and took on Dragon*Con ...
Pamela left Fraser behind (with sorrow) and took on Dragon*Con and the facts (or lack there of) in Science Fiction. Helping her out were special guests Phil Plait and Kevin Grazier.
