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Ep. 375: The Search For Life in the Solar System

Podcast: Play in new window | Download (0.0KB) With the discovery of water ice in so many locations in the Solar System, scientists are hopeful in the search for life on other worlds. Guest Morgan Rehnberg returns to Astronomy Cast to explain the best places we should be looking for life. Download the...

Ep. 364: The COROT Mission

Podcast: Play in new window | Download (0.0KB) Before NASA’s Kepler mission searched for exoplanets using the transit method, there was the European COROT mission, launched in 2006. It was sent to search for planets with short orbital periods and find solar oscillations in stars. It was an...

Ep. 202: The Planets at Gliese 581

Podcast: Play in new window | Download (0.0KB) With the discovery of a planet in the habitability zone of Gliese 581, the chances of finding life on other worlds is just getting better and better. Let’s take a look at the discoveries made at Gliese 581, provide some perspective on the real...

Ep. 34: Discovering Another Earth

What a week! Astronomers announced the discovery of an Earth-sized planet orbiting the nearby star Gliese 581. We talk about the technique used to discover the planet, the possibilities of finding even smaller planets, and what the future holds for finding another Earth. Correction: At the beginning of the show, Pamela says that Gliese 581c is estimated to have a mass of no more than 5.6 solar masses. The actual mass limit is estimated to be no more than 5.6 Earth masses. We are very sorry for the mistake. -Rebecca Episode 34: Discovering Another Earth (13.6 MB)

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 all the life?
Episode 24: Fermi Paradox (16.3 MB)

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 Equation (18 MB)  

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