Exposing PseudoAstronomy

July 23, 2015

Podcast Episode 137 – Why Earth Is Old, Without Radiometric Dating


Finding age of Earth
Does not require just Rad-
ioactiv’ty.

The next episode! It was actually recorded three weeks ago, but I was so busy with New Horizons that I never got time to edit and then post it. So, here we go, the different ways scientists got minimum ages for Earth – without using radioactivity as a technique.

Plus two feedbacks! For a half-hour fun-pack!

July 18, 2015

#NewHorizons #PlutoFlyby — The Pseudoscience Flows, Part 3


Introduction

I honestly haven’t seen this one that I remember — yet (I’m working on very little sleep and 14+ hour days right now) — but I suspect it’s only a matter of time from more conservative religious conspiracists: The naming scheme for Pluto and Charon. Some background is needed …

Names

In planetary science, one might wonder why we care about naming things. It seems to be a remarkably human-centric thing, for why should we have to feel like we need to stick a name on everything?

The answer is ease of communication. If you say “Tycho crater” to just about any planetary scientist, they know the exact lunar crater you’re talking about. Same with “Copernicus crater,” or “Mare Imbrium.” The alternative is something like, “The big crater with bright rays near the bottom of the moon if the north is up.” Or something like that.

Other than historic objects, things these days on planetary surfaces generally only get named if there’s a reason for it: As in, it’s an interesting feature that we’re going to be talking about a lot. Not every feature on every body is named.

International Astronomical Union (IAU) Policy for Pluto System

Because Pluto is the Roman god of the underworld, and Charon is the Greek ferryman of the dead to the underworld, the International Astronomical Union — the only official naming body in the world for naming stuff in the solar system and beyond — decided that the theme of “underworld” is going to stick, at least for major features. Sometimes this varies, but more on that later.

There is a sizable component of conservative Christians who think that any naming, or any reference, to such is an affront to their god, that it is occultism, Satan worship, etc.

Another side-rule is that no name should be duplicated.

Process

There are lots of “levels” of names. There’s the official IAU name. There are provisional, recommended names to the IAU. There are “for fun” names used within the science team. And there are “would be nice” names used by individual people.

As an example of the last item, there are many craters right now on Pluto and Charon named “Robbins” with a lot of numbers after it. For a friend, there are two “Banks” craters (one because I’m not sure if it’s real because of JPG compression artifacts). But that’s just for fun.

The more formal process, those other three levels I mentioned at the beginning of this section, varies somewhat. In the case with New Horizons and the Pluto-Charon system, a public website was launched months ago where people could both recommend and vote on names.

This was vetted by a very small group within the New Horizons science team, raking names by popularity, looking for gender and ethic biases, removing incredibly offensive names, and removing those used elsewhere (e.g., there’s a “Lonely Mountain” on Titan, so even though we’ve been referring to one on Pluto lately in the team, it cannot be recommended as an official name to the IAU, but this falls into the third category of “for fun” by the team).

So, the biggest stuff is going to get the most popular names from the list. And by “get,” I’m talking about that that second level, the recommended-to-the-IAU level. Which I think pre-approved “Tombaugh Reggio” before-hand. But beyond that, all names must be submitted to the IAU, and hence they are called “provisional names” until the IAU approves or rejects them.

The “Offending” Name(s)

Right off the bat, I figure that there will be some groups that are offended already by the “underworld” theme. But I read some very über-right-wing Christian / conservative websites. One of the beliefs among them is that anything “new age,” anything they perceive as pagan or “occult,” is Satanic, and therefore directly opposed to their version of a deity.

Enter Cthulhu (pronounced something like “coo-THOO-loo”). It was a deity created by H.P. Lovecraft. To quote from Wikipedia: “Lovecraft depicts Cthulhu as a gigantic entity worshiped by cultists. Cthulhu’s anatomy is described as part octopus, part man, and part dragon.”

Lovecraft himself is often viewed by these über-conservative Christians as an occultist/cultist himself, and the fact that a major low-reflectivity feature on Pluto that has been provisionally named after a “demonic” deity that Lovecraft dreamed up is likely going to not sit well with them.

However, my understanding is that it was selected because it was one of the most popular names in the voting.

Final Thoughts

Well, that’s it for now. Back to work. I expect to do at least two more of these, another about young-Earth creationists’ take on this and another about Crrow777’s take on this (he’s been getting a lot more press lately, so even though I really don’t want to give him more because question his mental fidelity).

July 13, 2015

#NewHorizons – The Pseudoscience Flows


Introduction

Sigh. We knew this would happen. But I’m always intrigued as to what form it will really take. I’ve been monitoring some sites, some people, and here’s some that I’ve found so far. Two mainly.

Pluto was ejected from Earth during the Great Flood

Ol’ Terry Hurlbut, one of the premier editors/contributors to Conservapedia, is a young-Earth creationist. He has an Examiner.com site and his own ConservativeNewsAndViews.com site which duplicates said Examiner content and has contributions from other, like-minded über-right-wingers and young-Earth creationists. His contribution is fairly straight-forward: Pluto formed recently – but not as recently as Earth – during Noah’s Flood. Why?

Well: Pluto is red. Rusty red. Therefore it has rust. Therefore it must have iron that was in an oxygen-rich environment. Therefore it came from Earth. QED

Richard Hoagland

Richard is a moving target these days. There’s a lot of drama – the basics of which have to do with the feud between Art Bell and the program he founded but its current incarnation, Coast to Coast AM. Steve Warner, host of the “Dark City” internet radio program (also on Art Bell’s network), got a two-hour interview with Richard late last week and it went up just two days ago.

Richard himself will have (or depending on when you read this, has had) a 6 5 hour special from 3-9 2-7AM PDT on Tuesday morning, July 14, the morning of the flyby. He offered a preview on the “Dark City” interview, and I jotted down a few notes:

1. The Pluto system is young or artificial: Because no rings or tiny moons have yet been found, as was predicted (and therefore “MUST” be found IF the system is natural), then the bodies are either made of material that does not produce rings or tiny moons (ergo artificial) OR it’s incredibly young (ergo artificial).

2. Richard thinks it was created by a Type II civilization (can harness the energy of a solar system) that died 65 million years ago and so isn’t enough time to accumulate rings / tiny moons. It has archives/libraries where our “true” history is stored, and it didn’t suffer from the exploding planet that created the asteroid belt at that time which is also why neither Pluto nor Charon should have many craters.

3. He expects the “regular, geometric patterns” that are evidence of this civilization to be prominent. He also thinks the cantaloupe terrain on Triton is buildings buried by methane ice that NASA released but just never mentioned, and he expects to see more of it on Pluto.

4. “We’ve already found some staggering, repeating, right-angle geometry that has no business being there, and yet no one has commented about it because they don’t know what to say!”

5. The “weird computer outage” was a warning to NASA to not show what’s really there … from “somebody.” Either Alan Stern (the mission PI) will go along with it, or he’ll show what’s really there. Because of the IAU controversy, Richard is betting on Alan’s integrity to show “us” what’s really there. (Note: Richard says this about every PI or non-US country for every space mission. If Richard can pull the noise out of the images the way he wants to find “regular geometry,” Alan has integrity and Richard wins. If Richard can’t pull it out, Alan was threatened and Richard wins.)

6. The IAU vote was done to increase public engagement (through controversy / soap opera) of Pluto so that Alan can do the big reveal that it has alien archives on it in a few days.

To Be Continued?

I’m incredibly busy these days, so I’m not sure if I’ll have time to post more of these. But, I wanted to let you know what I’ve found so far that’s the most “coherent.”

June 23, 2015

Podcast Episode 134: Big Bang Denial


The Big Bang theory:
Tot’ly explains the cosmos?
Or, is it a dud?

This episode follows a big from the Black Hole Denial episode, but this time with another aspect of cosmology: The Big Bang. I was able to use a few old blog posts, too, that I wrote practically 7 years ago.

As mentioned, I’m now on a weird – though backdating – release schedule due to the piling on of work as the New Horizons craft nears Pluto. But I’m still trying to do 2 episodes/month, at least.

April 23, 2015

How Do We Know How Old Stuff Is on the Moon?


Introduction

While this movie is branded under “Exposing PseudoAstronomy” for legal reasons, it has less to do with popular misconceptions/conspiracies/hoaxes and more to do with real science. This is my third more modern, lots of CGI movie, and my second to explain a research paper that I wrote.

In the movie, I go through how the lunar crater chronology is the fundamental basis for how we estimate the ages of surface events across the solar system. I also explain how my work affects the lunar crater chronology and what can be done to better constrain it.

I’m still waiting for a young-Earth creationist to claim that because of a factor of 2 uncertainty, 4.5 billion becomes 6.019 thousand.

I also wrote a blog post about this for The Planetary Society. Because it was posted there over two weeks ago, I think it’s fair game to repost here. You can click on any of the images for larger versions, and all of them are screenshots from the YouTube movie.

Planetary Society Blog Post

Three years ago, I started a project to replicate work done by various groups in the 1970s and 1980s. When the project was completed, the result implied that much of what we think we know about when events happened in the solar system were wrong, needing to be shifted by up to 1 billion years. I presented this in a talk at the recent Lunar and Planetary Science Conference at 8:30 AM, when most people were learning about the latest results from Ceres.

The project started simply enough: I downloaded some of the amazing images taken by NASA’s Lunar Reconnaissance Orbiter’s Wide-Angle Camera (WAC) that showed the Apollo and Luna landing sites. Then, I identified and measured the craters (my dissertation work included creating a massive global crater database of Mars, numbering about 640,000 craters).

The reason to do this is that craters are the only proxy we have for ages on solid surfaces in the solar system. We can determine the relative age of one surface to another (is it older or younger?) by looking at which has more craters: The surface with more craters will be older because, when you assume that craters will form randomly across the body, then the surface with more craters has had more time to accumulate them.

How to Use Craters to Understand Ages

Basic principle behind this work. (Background image © NASA/ASU; composite © S.J. Robbins.)

If we want to use craters for an absolute timeline – as in, actually put numbers on it – then we need some way to tie it to real ages. This was made possible only by the United States’ Apollo and the USSR’s Luna missions that returned rocks from the moon that could be radiometrically dated in labs on Earth.

With these radiometric ages, we then identify the craters on the surface those rocks were gathered and say that a surface with that many craters per unit area is that old.

That’s the lunar crater chronology: The spatial density of craters larger than a standard size versus radiometric age (we use 1 km as that standard size). This crater chronology is then scaled and used as a basis for the chronology across the rest of the solar system. When you hear someone say that something on the surface of Mars is X number of years old, chances are that’s based on the lunar samples from the 1960s and 70s and the crater counting done 40 years ago.

Apollo 15 Landing Site

Example landing site area, Apollo 15 (yellow star). Blue outlined areas indicate regions on which craters were identified, blue shaded areas were removed because they are a different type of impact crater, and blue circles are the craters mapped and measured. (Background image © NASA/ASU; data and composite © S.J. Robbins.)

And, that’s where my project came in. While the rock samples have continued to be analyzed over the decades, the craters were not. It’s easy to assume that the researchers back then did a great job, but by the same token, science is about replication and re-testing and we have developed new ways of doing things in the crater community since the Apollo era. A simple example is that the crater chronology requires a spatial density, and therefore you need to know the area of the surface on which you have identified craters. Over the past 40 years, we have better understood the shape of the moon and now have computers to allow for much more precise area calculations. This can result in changes by 10s of percent in some cases.

When I had finished my reanalysis, my results differed for many of the landing sites, in some cases by a factor of 2 from what the standard is in the field. I was surprised. I checked my work and couldn’t find any mistakes. So, I combed through the literature and looked to see what other people had published. I ended up finding a range of values, and only in one case was my result at the extreme low or high of all the published results. I showed my work to colleagues and none of them could find any issue with it. So, eventually I published it, early last year.

The Lunar Crater Chronologies

The new (blue) and old (red) chronologies and the data used to fit the model. The vertical axis shows the spatial density of impact craters larger than or equal to 1 km in diameter, and the horizontal axis shows the age of the surface from radiometric dating of collected rock samples. (© S.J. Robbins)

When I fit my crater data to the radiometric ages, my fit function showed a difference with the standard that has been used for three decades: Surfaces assigned a model age of about 3.5 to 3.7 billion years under the old chronology were older, by up to 200 million years. And, surfaces younger than about 3.4 billion years under the old chronology are younger, by up to about 1 billion years.

Differences Between the Lunar Crater Chronologies

The new and old chronologies in blue and red (top), and the difference between them in terms of model surface age. (© S.J. Robbins)

There are a lot of implications for this. One is that volcanism on the terrestrial planets may have extended to more recent times. This would imply that the planets’ cores stayed warmer longer. Another implication is that the large reservoirs of water thought to exist around 3 billion years ago may have existed for another 500 million years, with implications then for favorable environments for life.

But, something that I added near the end of my LPSC talk was the question, “Am I right?” The answer is an unsatisfying, “I don’t know.” I of course would not have published it if I thought I was wrong. But by the same token, this type of science is not about one person being right and another being wrong. It’s about developing a model to fit the data and for that model to be successively improved as it gets incrementally closer to explaining reality.

And, there are ways to improve the lunar chronology. One that I’m a big advocate of is more lunar exploration: We need more data, more samples gathered from known locations on the moon’s surface. We can then date those samples – either in situ or in labs on Earth – and along with crater measurements add more tie points to the lunar crater chronology function. Right now, there is a glaring gap in the sample collection, one that spans 2 to 3 billion years of lunar history. A single point in there could help differentiate between my model and the classic model. And more data would be even better.

Until we land robotic missions to send back samples from other planets or that can date samples there, the moon is still our key to ages across the solar system.

February 25, 2015

Why Do Young-Earth Creationists Even Try to Pretend at Science?


There are a few main young-Earth (Christian) creationism organizations in the world that rise to the top in terms of reach and output and attempt to use science to justify their beliefs. Among those I would name three: Answers in Genesis (US-based, headed by Ken Ham), Institute for Creation Research (US-based, founded by Duane Gish), and Australia-based Creation Ministries International (which I think was also founded by Ken Ham, but AiG and CMI severed ties several years ago, fairly acrimoniously).

Over the past eight years, I have dealt with articles by all three, and other. In fact, my early posts mostly consisted of ripping through YEC claims. That’s mostly fallen by the wayside as posts have (regrettably) decreased over the years as I became more and more busy with work, but occasionally I’ll still see something that I want to comment on.

But more on that momentarily.

What these Big Three do, among other things, is attempt to do science and/or report on science. They’ve realized that as each new scientific discovery has borne out that contradicts their sacred tome, more and more people will leave their strict, literal interpretation of their religious writings.

Ergo, they have to try to show that science somehow supports something that they’ve said and believe.

I’ve also done numerous posts on this blog about the scientific process and why – to be a good scientist – you must also be a skeptic: You must find a way to remove your own bias(es) from the experiment. You must be able to objectively look at the data and also try to disprove what you want to think is the case in order to see if the data are ambiguous or really do exclusively support the conclusion. You have to think of all the other interpretations and gather observational evidence that those explanations are not valid. The process is not infallible, but it’s a heck of a lot better than a dogmatic approach.

Which, despite all the façade, is what creation “science” really is. And, surprisingly, I couldn’t’ve said it better myself than what Creation Ministries International wrote a few days ago in trying to answer a reader’s question about when stars were formed:

“what you propose is clearly ‘science’-driven not text-driven”

Blasted “science!” Always interfering with the Bible! (or at least their reading of it)

But, realizing it or not, this clearly demonstrates that what YECs do is not science: They start with their conclusion and will modify or massage or tweak or somehow shove the data into that hole to make it come out right. Or, simply deny that it exists (such as Kent Hovind denying there are reversals in Earth’s magnetic field, or almost all YECs denying accuracy of radiometric dating). This handy flowchart I made several years ago sums it up nicely:

Flow Chart Showing Faith-Based "Science"

Flow Chart Showing Faith-Based “Science”

January 17, 2015

Podcast Episode 124: The Astronomical Distance Ladder


Measuring distance
In the Universe: A fun
Science episode!

An episode over two years in the making: The Astronomical Distance Ladder!!!!! (insert many cheers) In all seriousness, I have wanted to do this episode since autumn (August-ish) 2012, but I haven’t been able to find a good hook. Convicted and jailed felon, Kent Hovind, provided that for me on January 6, 1998, in a Coast to Coast AM episode I got my hands on. And so we have this episode. It is long. Those of you who like longer episodes, this is nearly an hour long. It did not intend it to be this long, but, well, that’s what happens when I get excited about a topic that’s not incredibly straight-forward.

I also guessed off the top of my head that an object with a redshift value of z = 1.4 would be about 10 billion light-years away. According to Wolfram Alpha, it’s 9.1 billion l-y lookback time, so take THAT, Prof. Morrison! (It’s been literally a decade since I thought about what z equals what distance, so I’m pretty impressed that I got that pretty close.)

I do want to apologize about the sound quality in this one and the variable volume levels (I tried to even them out in post-processing). I was recording during sustained 20mph winds with gusts over 50mph. So, I had a lot of background noise I was dealing with that varied in intensity.

This episode has three additional segments: New News related to a precision measurement of Saturn’s position, a new Logical Fallacies segment, and Feedback (one clarification, one negative and my response).

For the new Logical Fallacies segment, I’ll say what I said in the episode: “I’m open to feedback including overwhelming negative feedback on whether this was at all useful or is worth keeping in some modified way, and also if I’ve made any mistakes.” The fallacies discussed in detail for the episode are Argument from (Personal) Incredulity and Appeal to Ridicule. I got into how both of these are classes of Red Herring fallacies and the former is a sub-type of Red Herring, the Genetic. I also pointed out that additional fallacies in Mr. Hovind’s argument were the False Precision Fallacy, Appeal Against Authority, and False Analogy.

Edited to Add (January 21, 2015): The Raw Story has an article up today explaining a bit more about Kent Hovind, and that he is trying to testify before Congress (though he’s still in federal prison) about the IRS being a bunch of meanies.

July 22, 2014

Everyone’s Talking About Ken Ham Denigrating Space Exploration — Let’s Stop Talking About It


Okay folks, this is going to be a short post because I’m sick of it already. People are talking about Ken Ham, the CEO of Answers in Genesis who “debated” Bill Nye in February, wrote on his blog yesterday that space exploration is silly because it’s a search for aliens who don’t exist and would be damned anyway because of Jesus’ Love™. (I’m paraphrasing here.) If you really need a link, I’ll point you to Jerry Coyne’s blog post on it.

Ham may believe this. I wouldn’t be surprised. But you know what? I don’t care. And neither should you. And you shouldn’t be talking about it, and you shouldn’t be linking to his site (which is why I am not).

True — I have talked about AiG’s work in the past on this blog and in my podcast. But it was a specific science claim where we could learn something about science by exploring the claim.

This is just stupid. This seems almost certainly a cry for publicity under the adage “Any publicity is good publicity!” He had to know it would create controversy and that people would ridicule him. But in doing so, he would get publicity. People talking about him and his ministry and his (by most accounts) failing museum. The Bill Nye debate was almost six months ago, and they saw an immense surge in support and donations around that time, so much that their failing fundraising effort (such that they were issuing junk bonds) for a Noah’s Ark theme park suddenly was viable and they raised all their money.

Let me repeat: What Ken Ham said here was stupid. We know it was stupid. Even if he’s right that there’s no alien life out there, exploring space to learn more about the world/universe in which we live is worth it for its own sake. Now, can we stop talking about how stupid Ham was in saying this? Can we stop giving him publicity? I’ve dealt with pseudoscientists (or just idiots) who just say inflammatory things to get publicity. You haven’t heard about a lot of it on here – especially some recent stuff – precisely because I don’t want to give them publicity.

June 14, 2014

Podcast Episode 112: Is Mercury’s Magnetic Field Decaying? Does that Prove Recent Creation?


Magnetic field of
Mercury: Has it decreased
Or just stayed the same?

For this episode, we return to an old stalwart of the blog: Young-Earth creationism, and I examine the relatively recent claim that Mercury’s magnetic field is decaying, therefore God.

It’s a bit of a nuanced topic, since, to understand it, we have to get into magnetic fields and how you measure them around planets. Hopefully my squishy water balloon analogies make sense.

It’s a bit of a shorter episode, three days late, but I’ve been pretty busy catching up with work that I let slide while I was working on the Cydonia movie.

Oh, and the logical fallacies in the episode are: Cherry picking, and quote-mining.

March 12, 2014

Podcast Episode 103: Does Jupiter Support Young-Earth Creationism?


Jupiter, gas giant:
Why do you oh-so confound
Evolution? Hmmmm?

Young-Earth creationism! Jupiter! What else do you need for a fun episode? (Other than an engaging host?) I had not planned on doing this episode, and I realize that it’s a day late. Why? Because I was going to do an episode entitled, “ε, Newton, Einstein, and Schrödinger.” And I had it mostly written. And then I looked back at episode 64 on quantum nonsense and realized that everything I was going to put in this new episode had already been done as the last section of the main segment in that episode. This was realized at about 6PM last night.

So, I quickly dug up an older blog post and converted it to an episode, had to go to sleep, woke up to the roofers (new roof due to flood damage), and got to record tonight). Here ’tis.

It has been requested (Hi Dori) that I post the current plan of upcoming episodes. This is highly subject to change (see above), but right now, they are:

  • Episode 104 – Pyramids on Mars – 2014/03/21
  • Episode 105 – Solar System Mysteries that were PseudoSolved, Part 3 – 2014/04/01
  • Episode 106 – James McCaney (General, Conspiracy, Electric Universe) – 2014/04/11
  • Episode 107 – The Fake Story of Planet X, Part 9 (Marshall Masters) – 2014/04/21
  • Episode 108 – The Norway Spiral – 2014/05/01
  • Episode 109 – Practical Application of Uncertainty – Orbits and Spacecraft Observations – 2014/05/11
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