Alien rock mania

In the last week or so, there's been a sudden rash of claims of discovering alien artifacts on the Moon and Mars.

To which I respond: will you people please get a grip?

It's often hard enough, here on Earth, with the actual item in your hand, to tell the difference between a human-created artifact and an object with entirely non-human origins.  Chance resemblances and oddball natural processes sometimes result in rocks (for example) with strikingly organic-looking appearance.  For example, what do you make of this?

[image courtesy of the Wikimedia Commons]

Looks like coral, right?  Or maybe some sort of fossilized plant?  Nope, it's a fulgurite -- a rock that forms when lightning strikes sand.

So chance appearances don't tell you much.  Especially when you are looking at a grainy photograph of the object in question.  And especially when you want very much for there to be something impressive there.

For example, we had a claim a couple of days ago over at the International Business Times that the Mars rover Curiosity had photographed what appears to be a thigh bone.  "None of the National Aeronautic and Space Administration scientists have spoken about it," the article states, with some asperity, "but the news has been going viral."

Well, when you look at the photograph, you'll see why NASA really didn't want to spend their time debunking it:

[image courtesy of NASA]

It's a rock, folks.  Being a biology teacher, I know what a thigh bone looks like, and this ain't one.  It's a rock.

Oh, and to the folks over at the IBT: you do not improve your credibility by following up the story on the Martian thigh bone with the statement, "In the past, there have been claims of noticing objects on the surface of Mars like a dinosaur spine, dinosaurs, mysterious light, a toy boat, an iguana, a cat and a half-human and half-goat face."  Just to point that out.

Then, over at The UFO Chronicles, we had Skeptophilia frequent flier Scott Waring claiming that what is almost certainly a digital imaging glitch was "clearly an alien base on the Moon."    Here's the image:

According to Waring, you can see all sorts of things in this, like a wall and the entrance to an underground facility.  Me, all I see is a black blob.  Not the first time that imaging glitches have caused a furor; remember when a glitch in a NASA photograph of the Sun caused all the conspiracy-types to claim that the Earth was about to be attacked by the Borg cube?

Then just this morning, we had another report from Mars over at UFO Sightings Daily that there's an outline of a wolf on the Martian surface.  Here's that one, which made me choke-snort a mouthful of coffee:

Helpfully colored in so that you can see it.  Sad for Mr. Wolf, however -- he seems to be missing one of his hind legs.  Maybe with the lower gravity, you can get by with three.

So anyway.  I really wish people would stop leaping about making little squeaking noises every time one of the lunar or planetary explorers stumbles on something that has a vague similarity to a familiar object.  Aren't there enough cool real things out there in space to think about?  You have to invent Moon bases, thigh bones, and three-legged Martian wolves?

I'm sticking with the science.  That's always been plenty awesome enough, as far as I'm concerned.

Lunar triangle anomaly

The UFO-and-aliens crowd (and also the conspiracy theorists) currently have their knickers in a twist over an object that showed up on a photograph of the surface of the Moon on Google Moon.  The object certainly is interesting; it shows seven evenly-spaced dots arranged along two lines at what appears to be a perfect right angle.

Certainly not something that looks... natural.

Speculation about what the object could be is running rampant.  So far, I've seen the following ideas:

• the leading edge of a crashed, and partly buried, alien spacecraft;
• a portal to another dimension;
• a secret NASA lunar base (the spots are streetlights);
• a secret alien lunar base;
• a remote signaling device of extraterrestrial origin, à la 2001: A Space Odyssey;
• or one corner of a gigantic lunar pasta strainer.

Okay, I made the last one up.  But c'mon, people; it behooves us to remember that all we really have is a photograph with an odd image on it.  At the moment, we don't know what it is.  So endless speculation about what it is is kind of pointless, because we have exactly one (1) piece of data.

Things like this always remind me of what Neil deGrasse Tyson said, when asked in a talk if he "believed in UFOs:"

Remember what the "U" in "UFO" stands for.  There's a fascinating frailty of the human mind, that psychologists know all about; and it's called "Argument from Ignorance."  And this is how it goes, you ready?  Somebody sees lights flashing in the sky.  They've never seen it before.  They don't understand what it is.  They say, "A UFO!"  The "U" stands for "unidentified."  So they say, "I don't know what it is... it must be aliens from outer space, visiting from another planet."  Well... if you don't know what it is, that's where your conversation should stop.  You don't then say it must be anything.  

Now, I know that it's only human to speculate, but what's really important is that we keep in mind that it is speculation... and that of all of the speculation we engage in, we need to be most wary of answers that seem appealing to us.  The answer that seems appealing -- that it's a downed spaceship, if you're an aficionado of UFO lore -- is going to be the one you're the most likely to accept without question, that you're likely to overlook evidence and logic against. 

As a philosophy teacher of mine once said, "Beware of your pet theories.  They'll turn on you when you least expect it."

And of course, in this case, we do have a rational (non-alien-based) explanation for the image.  Ross Davidson, a digital image specialist at the Newcastle-upon-Tyne based web development firm OrangeBus, gives the following analysis of the strange image:

Basically it's similar to the thing you get in all those 'UFO videos' you see these days from people with digital cameras - when they use digital zoom too much, you get 'artifacts' as the missing data is recreated using an algorithm which create regular shapes simply because of the nature of digital.

As such a simple point of light becomes something like this.

If he rotated the camera the shape would rotate with it...

You can get similar things with still photos when you blow them up - the moon pic shows a 'triangle' because it's digital - made up of pixels.

If you look at the dark lines in the pic they all align in the same way - it's just a shadow which pretty much aligns with the pixels and when compressed/zoomed looks perfectly triangular.

So there's that.

Not, mind you, that I wouldn't love it if it did turn out to be a crashed spaceship.  If I had to pick one thing that I would love to have evidence of in my lifetime, it's extraterrestrial intelligence.  But thus far, I don't think this is it.  Does it deserve further investigation?  Of course.  Do I think it's a spaceship, or a lunar base, or even a giant pasta strainer?

Nope.  Not yet.

Remember what the "U" in "UFO" stands for.