The Skeptical Teacher

Musings of a science teacher & skeptic in an age of woo.

Posts Tagged ‘picture’

A Lesson in How NOT to be Skeptical: The Fake Neil deGrasse Tyson Quote

Posted by mattusmaximus on October 24, 2012

Many times we self-described skeptics and critical thinkers do not live up to our own rhetoric.  Case in point: How many skeptics/atheists/freethinkers/etc do you know who have shared the following quote, or perhaps you have shared it yourself?

Well, here’s the rub… this quote attributed to astrophysicist Neil deGrasse Tyson is…

FAKE!!!

Ouch.  I have to admit that I probably would have fallen for it, too; maybe I did, I cannot remember seeing this on my Facebook wall, but who knows?  It’s a good lesson for those of us who call ourselves skeptics to make sure that we’re taking care to walk the skeptical/critical thinking walk and not just talk the talk.  Here’s a good YouTube video expanding upon this lesson:

Posted in internet, skeptical community | Tagged: , , , , , , , , , , , , , , , , , , , , | 3 Comments »

Secret Mars Base Discovered? Hmmm, No…

Posted by mattusmaximus on June 7, 2011

According to this story over at Space.com, there is an amateur astronomer claiming that he has discovered what he calls a “Base on Mars” in the following image that he downloaded from Google Mars…

All I can say is… are you kidding me?!  A grainy, fuzzy, and heavily pixelated image from Google Mars shows… what exactly?  Why couldn’t this be some kind of geological feature on Mars, or couldn’t some of the features be artifacts of the imaging process?  Why the rush to jump to “alien base on Mars” without any supporting evidence?  This sort of thing is on par with people using similar crappy-quality images to claim they’re looking at Bigfoot, the Loch Ness Monster, or seeing Jesus in the clouds.  Folks, it all boils down to that well documented phenomenon called pareidolia, because if there were decent high-resolution images available then it would be harder for people to see what they (consciously or not) want to see in the pictures.

Some more reasonable possibilities are suggested by some experts in the Space.com article:

“It looks like a linear streak artifact produced by a cosmic ray,” said Alfred McEwen, a planetary geologist at the Lunar and Planetary Lab at the University of Arizona and the director of the Planetary Imaging Research Laboratory. McEwen is the principal investigator of the High Resolution Imaging Science Experiment (HiRISE), a powerful telescope currently orbiting Mars.

Cosmic rays are extremely energetic particles emitted by the sun and other stars. For the most part, the Earth’s protective magnetosphere blocks them from hitting the planet’s surface, McEwen explained. “But with space images that are taken outside our magnetosphere, such as those taken by orbiting telescopes, it’s very common to see these cosmic ray hits. You see them on optical images and a lot of the infrared images too,” he told Life’s Little Mysteries. …

… The digital compression software that converts the image into a JPEG file then “sort of smears out the image, giving it that pixelated look,” McEwen said. What started as a clear streak in high-resolution turns into a streak that, in the armchair astronaut’s words, looks like it is “made up of cylinders.”

That, or this guy actually did discover an alien base on Mars.  I think you’d have to have a particularly dull Occam’s Razor to accept that conclusion, however.

 

Posted in aliens & UFOs, space | Tagged: , , , , , , , , , , , , , , , , , , | Leave a Comment »

 
%d bloggers like this: