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Ep. 368: Searching for the Aether Wind: the Michelson–Morley Experiment

Podcast: Play in new window | Download (0.0KB) Waves move through a medium, like water or air. So it seemed logical to search for a medium that light waves move through. The Michelson-Morley Experiment attempted to search for this medium, known as the “luminiferous aether”. The experiment...

Ep. 351: Asteroid Adventures

Podcast: Play in new window | Download (0.0KB) Astronomy Cast’s 2014/15 season begins! With Rosetta’s arrival at Comet 67/P, we’re about to see a comet up close and personal. What will it take to explore, exploit and enjoy the asteroids and comets hurtling around our Solar System. And...

Ep. 346: Numbered Places: Area 51

Podcast: Play in new window | Download (0.0KB) Who knows what mysteries lurk at the military’s Area 51 complex in Nevada? Conspiracy theorists and UFO chasers think it’s a big alien coverup. But it’s probably something more boring, like advanced military aircraft. Let’s talk...

Ep. 337: Photometry

Podcast: Play in new window | Download (0.0KB) There’s a lot you can learn by just staring at an object, watching how it changes in brightness. This is the technique of photometry, and it has helped astronomers discover variable stars, extrasolar planets, minor planets, supernovae, and much...

Ep. 329: Telescope Making, Part 3: Space Telescopes

Podcast: Play in new window | Download (0.0KB) As we’ve said before, all telescopes really want to be in space. In part 3 of our series on amateur telescope making, we bring you up to speed on the final frontier: amateurs building space telescopes. The hardware and software is available off the...

Ep. 328: Telescope Making, Part 2: Serious Gear

Podcast: Play in new window | Download (0.0KB) Some astronomers are control freaks. It’s not enough to buy a telescope, they want to craft every part of the experience with their own hands. If you’re ready, and willing to get your hands dirty (and covered in glass dust), you can join thousands of...

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