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Ep. 367: Spitzer does Exoplanets

Podcast: Play in new window | Download (0.0KB) We’ve spent the last few weeks talking about different ways astronomers are searching for exoplanets. But now we reach the most exciting part of this story: actually imaging these planets directly. Today we’re going to talk about the work...

Ep. 366: HARPS Spectrograph

Podcast: Play in new window | Download (0.0KB) Almost all the planet hunting has been done from space. But there’s a new instrument installed on the European Southern Observatory’s 3.6 meter telescope called the High Accuracy Radial velocity Planet Searcher which has already turned up 130...

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. 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. 334: Chelyabinsk

Podcast: Play in new window | Download (0.0KB) Around this time last year a space rock crashed into the Earth above Chelyabinsk, Russia. It brightened the skies for hundreds of kilometers, broke windows and injured many people. Let’s look back at the event. What happened, and what did we...

Ep. 319: The Zodiac

Podcast: Play in new window | Download (0.0KB) Although the Zodiac is best known for astrology nonsense, it has a purpose in astronomy too. The constellations of the Zodiac define the plane of the ecliptic: the region where the Sun, Moon and planets appear to travel through the sky. What are the...

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