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: Imaging Extrasolar Planets, Infinite Universe, Inside a Black Hole
What will we eventually be able to see on extrasolar ...
What will we eventually be able to see on extrasolar planets? What does an infinite Universe mean? And what's down there, inside a black hole? If you've got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we'll try
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Ep. 144: Space Elevators
If you want to travel into the Solar System, you ...
If you want to travel into the Solar System, you have to get off the Earth. Traditionally, that meant blasting off in a rocket. But there's another strategy for escaping the Earth's gravity. Climb to the top of an extremely tall tower, and just jump away.
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Questions Show: Matter Balance, Jumping Light Speed and Black Hole Star Formation
Why was there a difference between the amount of matter ...
Why was there a difference between the amount of matter and antimatter at the beginning of the Universe? Mathematics lets us travel faster than light speed, so why can't we? And are there stars forming around black holes? If you've got a question for the
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Ep. 143: Astrobiology
We know there's life in the Universe. We see it ...
We know there's life in the Universe. We see it all around us here on Earth. But is there life anywhere else? By studying the extremes that life can take here on Earth, scientists are learning just how hardy and adaptable life can really be. And if you co
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Questions Show: Black black holes, Unbalancing the Earth, and Space Pollution
Why are black holes black? Can a huge mass of ...
Why are black holes black? Can a huge mass of humanity make the Earth wobble? And what's so bad about space pollution anyway? 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 it for
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Ep. 142: Plate Tectonics
The surface of the Earth feels solid under your feet, ...
The surface of the Earth feels solid under your feet, but you're actually standing on a plate of the Earth's crust. And that plate is slowly shifting across the surface of the Earth. Over geologic timescales, plate tectonics has totally resurfaced our pla
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Questions Show: Avoiding the Heat Death, Orbiting Galaxies, and the Dangers of Space Radiation
Will robots be able to avoid the heat death of ...
Will robots be able to avoid the heat death of the Universe? Can galaxies orbit each other like binary stars? And what are the dangers of space radiation to astronauts on the Moon? If you've got a question for the Astronomy Cast team, please email it in t
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Ep. 141: Volcanoes, Hot and Cold
You're familiar with volcanoes, eruptive vents where hot magma escapes ...
You're familiar with volcanoes, eruptive vents where hot magma escapes the Earth's interior – sometimes with disastrous effects. But did you know that volcanoes have shaped many of the planets and moons in the Solar System, not just our own Earth? And jus
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Questions Show: Galileoscope, Black Hole Time, and What Exactly is Energy?
How can you get a Galileoscope of your very own? ...
How can you get a Galileoscope of your very own? What happens to time inside a black hole? And what exactly is energy anyway? 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 it for
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Ep. 140: Entanglement
One of the most amazing aspects of quantum mechanics is ...
One of the most amazing aspects of quantum mechanics is quantum entanglement. This is the strange behavior where particles can become entangled, so they're somehow connected to one another – no matter the distance between them. Interact with one particle
