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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Questions Show: Telescope Suggestions, Black Hole Energy, and Universal Time
What starting telescope equipment does the Astronomy Cast team suggest? ...
What starting telescope equipment does the Astronomy Cast team suggest? How much energy does a black hole generate? And how do we measure time outside the Earth? If you've got a question for the Astronomy Cast team, please email it in to info@astronomycas
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Ep. 139: Energy Levels and Spectra
Last week we took a peek into the tiny world ...
Last week we took a peek into the tiny world of quantum mechanics, and its unintuitive, but very accurate mathematical predictions. And although we all appreciate the physics lesson, you're probably wondering what this all has to do with astronomy. Well,
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Questions Show: An Unlocked Moon, Energy Into Black Holes, and the Space Station's Orbit
What would happen if the Moon wasn't tidally locked to ...
What would happen if the Moon wasn't tidally locked to the Earth? What happens to all that mass and energy disappearing into a black hole? And how can we explain the space station's crazy orbit? If you've got a question for the Astronomy Cast team, please
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Ep. 138: Quantum Mechanics
Quantum mechanics is the study of the very tiny; the ...
Quantum mechanics is the study of the very tiny; the nature of reality at the smallest scale. It's a science that defies common sense, and delivers no helpful analogies. And yet it delivers the goods, making scientific predictions with incredible accuracy
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Questions Show: Hidden Fusion, the Speed of Neutrinos, and Hawking Radiation
Are new stars dark until their photons reach the surface? ...
Are new stars dark until their photons reach the surface? How fast do neutrinos travel? And what’s the story with Hawking Radiation? If you've got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we'll try to tackle
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Ep. 137: Large Scale Structure of the Universe
This week we’re going to think big. Bigger than big. ...
This week we’re going to think big. Bigger than big. We’re going to consider the biggest things in the Universe. If you could pull way back, and examine regions of space billions of light-years across, what would you see? How is the Universe arranged at t
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Questions Show: The Source of Atmospheres, the Vanishing Moon, and a Glow After Sunset
How do planets get their atmospheres? What would happen to ...
How do planets get their atmospheres? What would happen to the Earth if the Moon just disappeared? And what’s that strange glow we see after sunset? If you've got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we'
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Ep. 136: Gamma Ray Astronomy
And now we reach the end of our tour through ...
And now we reach the end of our tour through the electromagnetic spectrum. Last stop: gamma rays. These are the most energetic photons in the Universe, boosted up to incredible energies in the most violent places in the Universe. Gamma rays are tricky to
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Questions Show: Dangerous Solar Flares, Higgs Boson Insights, and Light Speed Flashlights
Can our Sun generate a solar flare that would wipe ...
Can our Sun generate a solar flare that would wipe out life on Earth? Has the Large Hadron Collider answered any questions about the Higgs boson? And what would happen if you shined your flashlight out the front window of a spaceship going almost the spee
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Ep. 135: X-Ray Astronomy
If you've ever broken a bone, X-rays are a part ...
If you've ever broken a bone, X-rays are a part of the electromagnetic spectrum. Doctors use X-rays to study the human body, and astronomers use X-rays to study some of the hottest places in the Universe. So let's put on our X-ray specs, and see what we c
