Exposing PseudoAstronomy

May 26, 2015

Podcast Episode 132 – In Search Of Planet X (Live from Denver ComicCon)

In Search: Planet X.
An overview of common
Ideas about it.

This episode is another recording of one of my live presentations, modeled a little after Leonard Nimoy’s “In Search Of” television series. It was presented in front of a live audience at the Denver ComicCon on May 24, 2015, to about 75-100 people. I was bordered on two sides by other sessions that had more people and a lot of laughter, so I played to that a little bit when there were opportune moments. I also suffered a minor A/V issue in the middle but recovered, so you’ll hear some fumbling there.

Unfortunately, there is also some popping that comes in about 10 minutes into the recording. I exploited all the filters that I know of in my Audacity toolkit, and they are less of an issue than they were, but they are definitely present.

I also need to announce that it is that time of year when work is going to get crazy, so episodes may come out a little less regularly, especially during July. I’m still going to keep to the two per month schedule, but they may not be out on exactly the first and sixteenth of the month.

And with that in mind, I have to head to the airport in 45 minutes for more work, after just being back home for 3.5 days. So …


May 9, 2015

The Reality Check Podcast Episode 348 – Me on Exoplanets, Others on Other Stuff

Episode 348 of “The Reality Check,” a weekly Canadian podcast that explores a wide range of scientific controversies and curiosities using science and critical thinking, is posted, and I take the first (and longest) of the three segments, where I discuss exoplanets.

I was originally contacted to discuss this topic because the hosts had some skepticism about the hype that we get every few weeks or months about how we are just on the verge of discovering an Earth-like exoplanet. The issue is that “Earth-like” can have a lot of different requirements and qualifications: Do you mean Earth-sized? Earth-like orbit? Habitable zone around the star? Atmosphere like ours? Etc.

Unfortunately, for my linear thinking, that meant I had to spend about 20 minutes going through an overview of how we find exoplanets, what the limitations are of each technique, and what information about the planet each technique can give us, and how different techniques and follow-up observations can be used to give complementary information (for example, if you detect an exoplanet using the transit method, you can use the radial velocity method to get the mass of the planet, and if you detect an atmosphere with the transit method, you could use spectroscopy with the Hubble Space Telescope to measure the atmosphere’s composition).

And for the record, when I practiced the segment without interruptions, it was 11 minutes. It stretched into almost 30 minutes on the show. And for regular listeners of TRC, you should recognize a quote from former-host Elan (I think) that I incorporated into the end of my segment.

It was toward the end that I finally got to the question about whether media reporting is hype. And, to put it concisely: Yes. But with that said, we really do, at this point, finally have the technology to detect an Earth-sized planet (and have) in an Earth-like orbit (have not) with potentially an Earth-like atmosphere (have not, and this tech may not *quite* be there, but if it isn’t, it’s close).

I haven’t listened to it yet, but of course I was there when it was being recorded, and I don’t remember embarrassing myself too much. They do tend to all talk more slowly, though, when recording at 1x versus how I listen to podcasts at about 1.2–1.3x. Also, three of the 4 outtakes (they have outtakes at the end of the show) are things I said or contributed — I guess I was humorous (or humourous? since it’s Canadian?).

I will add that doing a panel show is VERY different from doing a monologue as is my normal podcast. Or even doing an interview on the podcast. The dynamics are (obviously) completely different, and you almost have to build in pauses to what you’re talking about in case of questions from others. I think I stepped over some people, too. For example, there was one point maybe half-way through my segment where I stopped and asked if anyone was there because I wanted to make sure my internet connection (and theirs’) was still up since we had been having issues. They were all there, but then there were something like 3-4 questions that they asked because they had just been developing while I was talking and not pausing enough to let them ask.

If they’re kind enough to invite me back, I’ll keep this in mind and build that in. And work more at editing myself down.

Oh yes— There were two other segments. One was a guessing game as to “which came first,” while the other segment was about whether you should plan to visit Israel last if you go to the Middle East because other countries won’t let you in if you have an Israeli stamp in your passport.

May 2, 2015

Podcast Episode 131 – Clip Show #3: Blood Moons, Ceres’ Bright Spots, MESSENGER’s Death, and Funding in Science Follow-Up

Blood moons, science cash,
And spacecraft conspiracies
Are topics du jour.

Clip Show #3 is a big catch-up on several miscellaneous topics: The latest lunar eclipse, Ceres’ mysterious bright spots, MESSENGER’s death plunge into Mercury, and a large follow-up to episode 126 which was my interview with Dr. Pamela Gay about funding in science. This episode also had a logical fallacy section – cherry picking and anomaly hunting – and a feedback/Q&A about whether NASA has created a Warp Drive, and finally my long-foreshadowed tribute to Leonard Nimoy, with how he or his characters influenced myself and you in some way.

There’s really not too much else to say about this episode. The next one will likely by about Big Bang Denial (along similar lines to episode 125 about Black Hole Denial and a future one about Dark Matter Denial). And, this Friday/Saturday, I should be back on “The Reality Check” podcast discussing exoplanets and that we’ve been on the cusp of detecting an Earth-like planet … for many years.

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