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Astronomy Cast

Astronomy Cast

Host: Fraser Cain and Dr. Pamela Gay
Subscribers: 9985 (data via FeedBurner)
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Description:
Astronomy Cast provides a weekly fact based journey through the cosmos. Fraser Cain and Dr. Pamela Gay deal with a single topic about space and astronomy, explaining it in terms you can understand.
Tags: astronomy cosmology physics science space universe
SUBSCRIBERS TO THIS PODCAST:
ukemeister - ebresie
PAST SHOWS
Ep. 87: The End of the Universe Part 2: The End of Everything
5/5/2008 | Download File (14.23 MB)
Hopefully you've all recovered from part 1 of this set, where we make you sad about the future of the humanity, the Earth, the Sun and the Solar System. But hang on, we're really going to bring you down. Today we'll look far far forward into the distant future of the Universe, at timescales that we can barely comprehend.
Ep. 86: The End of the Universe Part 1: The End of the Solar System
4/28/2008 | Download File (15.51 MB)
This is a show we wanted to do since we started Astronomy Cast but we always through it was too early. We wanted you to know that we're positive, happy people with enthusiasm for astronomy and the future. It's time for some sadness. It's time for a grim look to see what the future holds for the Universe. This week we stay close to home and consider the end of humanity, the Earth, the Sun, and the entire Solar System. Next week we'll extend out to the very end of the Universe.
Ep. 85: Detectors
4/21/2008 | Download File (13.95 MB)
Our senses can only detect a fraction of the phenomena happening in the Universe. That's why scientists and engineers develop detectors, to let us see radiation and particles that we could never detect with our eyes and ears. This week we'll go through them all, so you can understand how we see what we can't see.
Ep. 84: Getting Around the Solar System
4/14/2008 | Download File (17.64 MB)
Have you ever wondered what it takes to get a spacecraft off the Earth and into space. And how managers at NASA can actually navigate a spacecraft to another planet? And how does a gravity assist work? And how do they get them into orbit? And how do they land? So many questions…
Ep. 83: Wave Particle Duality
4/7/2008 | Download File (13.49 MB)
Have you ever heard that photons behave like both a particle and a wave and wondered what that meant? It's true. Sometimes light acts like a wave, and other times it behaves like a little particle. It's both. This week we discuss the experiments that demonstrate this, explain how scientists figured it all out in the first place. What does wave/particle duality have to do with astronomy? Well, everything, since light is the only way astronomers can see out into the Universe.
Ep. 82: Space Junk
3/31/2008 | Download File (12.98 MB)
We're polluting every corner of our own planet, so it only makes sense that we'll take our trashy habits out into space with us. This week we look at the myriad of ways we're messing up space, from the trash orbiting the planet to the radiation we're leaking out into space.
Ep. 81: Questions on the Shape Size and Centre of the Universe
3/24/2008 | Download File (14.02 MB)
As predicted we got a lot of questions from people about our trilogy of shows on the size, shape and centre of the universe. Today we'll do our best to clear them all up.As always, if you're still confused drop us an email to info at astronomycast dot com.
Ep. 80: Craters
3/17/2008 | Download File (15.54 MB)
Pamela's attending the 39th Lunar and Planetary Sciences Conference, and you know what that means: the Moon… and planets! When you think of the Moon, you think of craters. In fact, that's a big theme this week at the conference, so Pamela took it as inspiration. Here you go, the week we drove the show into a crater. Wait… there's got to be a better way to describe this.
See All Episodes of Astronomy Cast >

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