Author Archives: Carl

Kookery Comes a Knockin’

I’m quite used to encountering conspiracy kooks nearly everywhere on the Internet–and occasionally in public places–but never this close to home.  Apparently my neighborhood harbors not only a 9-11 Twoofer, but one willing to drop some change at the local printer and go door-to-door hanging these brochures.

Something a crazy person hung on my doorknob

And it’s not just your run of the mill “it was an inside job!” claim.  It’s heavy on Dr. Judy Wood, a “former assistant professor of mechanical engineering”.  She asks “where did the towers go?”, claiming that the debris piles were too small to account for the mass of the towers and that “directed free energy technology” must be behind the “missing” mass.  That’s one I hadn’t heard before, and even more evidence-free than most other ridiculous claims out there.

I’m not going to get into it a critique of her “theories” here, and I’m not going to provide a link as you can find it yourself if you are so inclined.  But as a civil engineer I see no need for non-existent weapon systems, thermite charges, or any other nonsense to explain how the towers collapsed.  My limited perusal of her website revealed nothing but unsupported speculation, evidence taken out of context, and any number of other logical fallacies including special pleading. Oops, I said I wasn’t going to get into a critique.  Old habits…

It’s interesting to note that on her website she claims “Sadly, this case had no support from the ‘Truth movement’…”, meaning, it appears, that her claims are too ridiculous for other Twoofers to accept.  I had a hard time believing that until I came across efforts by the frauds at “Architects and Engineers for 9-11 Truth”  to debunk her.  Splitter!

Anyway, while it makes for a compelling study in psychology, the question I find more interesting is: what would it take to pull off a hoax like this and actually fool the experts?  I’m quite certain that with millions of eyewitnesses, and the fact that it took place right here on Earth in one of our most densely populated cities, that it would be phenomenally difficult to fake (and by “fake” I mean to fool ACTUAL experts, not crackpots on YouTube).  Like the fact that it would be MORE difficult to have faked the Apollo landings, than to actually have gone to the Moon in 1969.

Nat Geo Goes to Mars

Starting Monday November 14, The National Geographic Channel is airing a 6-part miniseries about the first human mission to Mars in 2033.  You can set your DVR and wait, or watch the first episode on-line now, in addition to related digital shorts.

Based on my initial screening it appears to be a mix of documentary–including interviews with the likes of Elon Musk, Robert Zubrin and Andy Weir–and dramatization.

Better Never than Late?

Barrack Obama has been busy writing OpEd pieces lately, including one in my favorite magazine, The Economist, and an extremely curious one published October 11 on

While I might take issue with a few of the assertions in the piece, I certainly don’t disagree with the overall message that we will go and that this time it is to stay.  However, the timing is bizarre, and the message odd from a President that hasn’t displayed an overwhelming interest in space exploration.  I do not tend to be cynical, but to me this screams of a transparent attempt at legacy building on the cheap.

On a curious note, right below the President’s piece is another by Michelle Obama advocating improving access to education for girls the world over.  Right now the link is titled “Michelle Obama:  Let’s get girls to school”, but here’s what it looked like earlier today when it was originally published:



Gemini-Mars Winner Announced

The Mars Society recently announced the winner of the Gemini-Mars competition, the culmination of a program that was originally announced last year.  Awhile back I described the benefits of such a program here and here.  Gemini-Mars is a proposed Mars flyby mission, so named because it would include a two-person crew and also because it would pave our way to reaching the Martian surface, much like the Gemini Program did for the Moon in the 1960s.


The top team, from Cranfield University in the UK, was one of 10 teams invited to present their plan at the 2016 Mars Society Convention held last month in Washington DC.  Details of the plan were not included in the announcement, but will presumably be contained in the conference proceedings.  I was unfortunately not able to attend this year, and thus haven’t yet seen the presentation.

The original contest announcement included the statement that the plan “could be placed on the desk of the President-elect in late 2016 and be completed by the end of his or her second term”.  Well in a matter of weeks we’ll know who that will be, and hopefully that individual will have an interest in taking this next bold step.

Zubrin on SpaceX to Mars

Robert Zubrin was quick to post some suggested improvements to Elon Musk’s recently announced Mars plans (quicker than I was to post this follow-up):

The key thing I would change is his plan to send the whole trans Mars propulsion system all the way to Mars and back. Doing that means it can only be used once every four years. Instead he should stage off of it just short of Earth escape. Then it would loop around back to aerobrake into Earth orbit in a week, while the payload habitat craft with just a very small propulsion system for landing would fly on to Mars.

Used this way, the big Earth escape propulsion system could be used 5 times every launch window, instead of once every other launch window, effectively increasing its delivery capacity by a factor of 10. Alternatively, it could deliver the same payload with a system one tenth the size, which is what I would do.

So instead of needing a 500 ton launch capability, he could send the same number of people to Mars every opportunity with a 50 ton launcher, which is what Falcon heavy will be able to do.

The small landing propulsion unit could either be refilled and flown back to LEO, used on Mars for long distance travel, or scrapped and turned into useful parts on Mars using a 3D printer.

Done in this manner, such a transportation system could be implemented much sooner, possibly before the next decade is out, making settlement of Mars a real possibility for our time.


Dragons on Mars?

Reuters reports that SpaceX apparently plans to send an unmanned Dragon capsule to land on the Martian surface as soon as 2018.

SpaceX MarsWe’ve landed numerous craft on Mars, and this wouldn’t have capabilities that have made robotic explorers so useful.  However, it would be the first designed to bring humans to Mars, quite a milestone.  While the company has indicated that it doesn’t intend to provide details on the program until September, there is some very interesting potential .

Besides demonstrating the descent and landing technology, the mission could add greatly to our knowledge of radiation exposure and the long term performance of life support systems without a team of highly skilled (and motivated!) mechanics in the loop.  I wonder if the mission could include a simulated crew, consuming oxygen, expelling CO2 and other waste.  Of course the Dragon craft wouldn’t be the only habitable volume for the six month trip in a manned mission, but any opportunity to test systems under challenging, real-world conditions would be welcome.


Mars Sample Return on the Cheap?

I recently attended a presentation about the BoldlyGo Institute, hosted by the Rice University Space Institute.  BoldlyGo is a “non-governmental, non-profit organization founded to address highly compelling scientific questions through new approaches to developing space science missions while engaging the global community in the quest.”  As presenters Dr. Laurie Leshin (Worcester Polytechnic President) and Dr. Jon Morse (BoldlyGo CEO) put it, they are trying to fill the science and exploration gap resulting from stagnant NASA funding.

Their first proposed mission, surprisingly, is a Mars sample return mission.  Sound too ambitious?   Maybe not.  I’ve posted about the welcome reset of expectations for Humans-to-Mars, with a shift to focusing on a Mars flyby as the initial near-term goal.   Similarly, BoldlyGo’s SCIM mission (“Sample Collection to Investigate Mars”) is a fresh alternative to the standard sample return missions that have never gotten off the drawing board.

With a baseline launch opportunity in August 2020, SCIM performs a daring high-speed atmospheric pass down to below 40 km altitude timed to coincide with seasonal Martian dust storms, collecting thousands of Martian dust particles from the atmosphere. After the sample collection pass at Mars, the spacecraft returns directly to Earth, where its precious, sterilized samples descend by parachute to the ground.

While the sample size will be small, it is anticipated that the particles collected will be representative of the ubiquitous Martian dust, and that back on Earth the dust can be subject to intense examination not foreseeable on a near-term robotic mission.  For the relatively low price of perhaps $300 million, that’s a lot of scientific bank for the buck.

Mars Pirate Radio Interview

Last month I had the pleasure of speaking with fellow Sci Fi author and host of Mars Pirate Radio Doug Turnbull.  He has posted our discussion in two parts here (tab down to Episodes CXXV and CXXVI).  It was a pleasure to speak with a like-minded space enthusiast on topics ranging from the works I have written with Tom James, to science fiction in general, to the future of human space exploration and settlement.

Doug has published numerous novels and short stories, and I invite you to check out his work.