Ep. 24: The Fermi Paradox: Where Are All the Aliens?

We live in a mind bogglingly big Universe filled with countless stars. We know intelligent life evolved here on Earth. It must be common across the Universe, right? But if there’s life out there, how come we haven’t been visited by aliens yet? Why haven’t we even picked up signals from alien television stations? Where’s […]




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Ep. 23: Counting Aliens With the Drake Equation

If you’re wondering how many extraterrestrials there are in our galaxy, you just have to use a simple equation developed by astronomer Frank Drake in 1961. Just find out how many stars there are, how many support life, how many advanced societies form, and a few other details and we’ll be set. Episode 23: Drake […]




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Ep. 22: Variable Stars

Our Sun has been around for billions of years, and will last for billions more. We’re lucky, it’s pretty stable and regular as stars go, only changing in brightness a little now and then. But there are stars out there that change dramatically; astronomers call them variable stars, and they demonstrate just how bizarre and […]




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Ep. 21: Questions Show #2

Our episode on black holes generated many many questions from listeners. We dip into this bottomless pool of questions and start dealing with them. Are really big black holes like the Big Bang? How can black holes evaporate? What would it look like to stand on a black hole? And just how large would a […]




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Ep. 20: What We Learned from the American Astronomical Society

It’s astronomical society get together time, and we send Pamela to investigate and record. Hear the latest news that will make your text books out of date. Find out where all the dark matter is collecting, the identity of Kepler’s supernova, and new insights into the closest, brightest supernova in recent memory. Episode 20: What […]




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Ep. 19: Comets, Our Icy Friends from the Outer Solar System

The sudden brightening of Comet McNaught has reminded us what a treat it can be to see a comet with the unaided eye. A diffuse ball with a long tail stretching across the sky. There’s nothing else in the night sky that can compare to a bright comet. But what are these objects, where do […]




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Special Alert: Go See Comet McNaught

There’s a big bright comet visible in the sky right now. Listen to this special alert, and then go outside right at sunset to see Comet McNaught with your very own eyes. You’ve got to move quickly, as it’ll be lost in the glare of the Sun. Don’t worry, it’ll reappear shortly, and could be […]




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Ep. 18: Black Holes Big and Small

We’re finally ready to deal with the topic you’ve all been waiting for: Schwarzschild swirlers, Chandrasekhar crushers, ol’ matter manglers, sucking singularities… you might know them as black holes. Join as as we examine how black holes form, what they consume, and just how massive they can get. Download Episode 18: Black Holes Big and […]




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Ep. 17: Where does the Moon Come From?

We take the Moon for granted, but its effect on the Earth is very important; possibly even critical for the formation of life. But where did it come from? Did the Earth and Moon form together? Or did the Earth capture a wayward Moon? Or was there a more catastrophic cause to this lunar mystery? […]




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Ep. 16: Across the Electromagnetic Spectrum

We see the Universe in visible light with our photon detecting eyes. We can feel infrared heat with our photon detecting hands, and we get sunburns with our ultraviolet photon detecting skin (ouch). But there’s a whole spectrum of photons out there, from radio waves to gamma rays that astronomers use to understand the Universe. […]




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