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: Shooting Lasers at the Moon and Losing Contact with Rovers
This week we find out how hard it is to ...
This week we find out how hard it is to hit the Moon with a laser, and if scientists lose contact with the Mars rovers when they go behind the Sun. If you've got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we'l
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Ep. 128: Dust
You can't make a Solar System without a whole lot ...
You can't make a Solar System without a whole lot of dust. And that's the problem. This dust has blocked astronomers views into some of the most fascinating parts of the cosmos. It shields the galactic core, enshrouds newly forming stars and their planets
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Ep. 127: The US Space Shuttle
You’ve heard us talk about capsules, you’ve heard us talk ...
You’ve heard us talk about capsules, you’ve heard us talk about space suits, well today we take a look at the only currently in use reusable space craft. It’s a not a bird, its not a plane – It’s the US Space Shuttle. And to make it interesting – we’ve se
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Ep. 126: From Skeptics Guide with Questions
Orbiting black holes generate gravity waves. This week Bob Novella ...
Orbiting black holes generate gravity waves. This week Bob Novella of Skeptics Guide to the Universe is going to pepper Pamela with questions, testing her ability to leap from tides to gravitational waves to Higgs bosons. We'll see where this takes us on
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Ep. 125: A Zoo of Extrasolar Planets
Dreaming up new planets is a favorite pastime of science ...
Dreaming up new planets is a favorite pastime of science fiction writers, but the universe often has them beat – coming with planets in place and forms that we had quite thought to imagine. Today we know of 228 stars orbiting alien stars, and in this epis
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Questions Show: Moons and the Drake Equation, Stars in the Void, and Rings Around Stars
This week we find out if moons around other planets ...
This week we find out if moons around other planets could support life, if there's anything out there between galaxies, and whether stars form rings. 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. 124: Space Capsules, Part 1 - Vostok, Mercury and Gemini
The space capsule has been around for almost 50 years, ...
The space capsule has been around for almost 50 years, when Yuri Gagarin headed to space in 1961. There have been many programs that used capsules by both the Americans and the Russians, and even the Chinese are using them now for their spaceflight progra
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Ep. 123: Homogeneity
As astronomers discovered that we live in a great big ...
As astronomers discovered that we live in a great big universe, they considered a fundamental question: is the universe the same everywhere? Imagine if gravity was stronger billions of light years away… Or in the past. It sounds like a simple question, bu
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Ep. 122: How Old is the Universe
We did a wildly popular three part series about the ...
We did a wildly popular three part series about the center, size and shape of the Universe. But every good trilogy needs a 4th episode. This week we look at age of the Universe. How old is the Universe, and how do we know? And how has this number changed
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Questions Show: Questions Show: Stellar Roche Limits, Seeing Black Holes, and Water on Mars
This week we find out when stars get torn apart ...
This week we find out when stars get torn apart from gravity, how we can see supermassive black holes, how liquid water could have existed on Mars in the past, and much more. If you've got a question for the Astronomy Cast team, please email it in to info
