Archive | Planets

Ep. 430: Coming Home from Mars, Part 2

Join us as we try to finish the interrupted episode Coming Home from Mars! We usually record Astronomy Cast every Friday at 1:30 pm Pacific / 4:30 pm Eastern / 8:30 PM UTC (20:30 GMT). You can watch us live on AstronomyCast, or the AstronomyCast YouTube page. If you would like to join the Weekly […]

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Ep. 430: Coming Home from Mars

Note – This episode was interrupted due to a power outage on Fraser’s end. They’ll reschedule to finish episode on 12/5 (most likely – Fraser is traveling this week!), and we’ll put the pieces together when we have them and release as audio podcast! We usually record Astronomy Cast every Friday at 1:30 pm Pacific […]

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Ep. 429: Living on Mars

When Elon Musk announced plans to send humans to Mars, he conveniently left out one important aspect. How are we supposed to survive on a place this hostile to life? Seriously, Mars sucks, and it’s going to take some impressive techniques and technologies to make it on the Red Planet. We usually record Astronomy Cast […]

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Ep. 428: The Moons of Mars

We begin a miniseries on Mars. How many episodes will we do? Who knows? But we start today with a discussion of the two Mars moons, Phobos and Deimos. We usually record Astronomy Cast every Friday at 1:30 pm Pacific / 4:30 pm Eastern / 8:30 PM UTC (20:30 GMT). You can watch us live […]

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Ep. 422: Geysers

So if you’ve been to Yellowstone National Park, you’ve seen one of the most amazing features of the natural world – geysers. In today’s episode, we’re going to talk about geysers on Earth, and where they might be in the solar system. We usually record Astronomy Cast every Friday at 1:30 pm Pacific / 4:30 […]

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Ep. 410: Planet 9 Facts and Fiction

The discovery of Planet 9 has caused a wonderful, confusing uproar and a flood of misinformation in the news and social media. We’ll sort out what we actually know, what things just aren’t true, and what things might be possible! Download the show [MP3] | Jump to Shownotes | Jump to Transcript (more…)

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Ep. 409: Spin in the Solar System

The Solar System is a spinny place. Everything’s turning turning. But if you look closely, there are some pretty strange spins going on. Today we talk about how everything started turning, and the factors that still “impact” them today. Download the show [MP3] | Jump to Shownotes | Jump to Transcript (more…)

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Pamela facepalm. Photo courtesy Chuck Tomasi

Ep. 390: Occam’s Razor and the Problem with Probabilities

I’m not saying it’s aliens, but it’s aliens. Actually, it’s almost certainly not aliens, or a wormhole, or a multiverse. When scientists discover something unusual, they make guesses about what’s happening. But Occam’s Razor encourages us to consider the probabilities of different events before making any concrete predictions. Download the show [MP3] | Jump to […]

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Credit: NASA/JPL

Ep 387: Water on Mars… Again

Have you heard the big news? NASA has reported that Mark Watney is alive and well on the surface of Mars. No, wait, they’ve reported that there’s water on Mars. Didn’t they already report this? Today we’ll update you on the latest discovery and what this means for the search for life on Mars. Download […]

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Hubble Space Telescope. Image credit: NASA

Ep 386: Orbiting Observers

The atmosphere keeps us alive and breathing, but it really sucks for astronomy. Fortunately, humanity has built and launched space telescopes that get above the pesky atmosphere, where the skies are really clear. Let’s take a look at the past, current and future of orbital observation. Download the show [MP3] | Jump to Shownotes | […]

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