Thursday, December 20, 2012

The Apocalypse, Start of the 14th Baktun, or Y5.6K Problem

The last day on earth will begin in 12 hours and 45 minutes from now if the hype about the Mayan calendar apocalypse is to be believed. Alas, I fear we will all be relieved, or indifferent, or perhaps a bit disappointed after December 21st passes us by without an apocalyptic incident of any kind. I also fear that the world will not undergo a brilliant flash of enlightenment that will herald a new age for humanity (though Valhalla knows we could certainly use it).

I prefer to think that all the COBAL equivalent programs written for the ancient Mayan computers will glitch on December 21st due to the b'ak'tun roll-over problem (just like our own Y2K) which assumes (1) that the ancient Mayan programmers were foolish enough not to include the b'ak'tun digit in their date representations, and that (2) the ancient Mayans actually had computers, and that (3) any of said same computers were somehow still running. I call this non-existent problem the Y5.6K bug.

So in case the Mayans were somehow right, I'ld like to thank you for reading this blog, and I hope that you have found it enjoyable. And for insurance purposes, today might be a good day to go home a little early, tell your spouse she or he is beautiful, have a nice dinner, hug your kids and tell them you love them, and let your dog or cat sleep inside for a change.

A nice link about the functions of the Mayan calendar

Dragon Resupply Mission #1

This news is once again quite late in coming. After a successful COTS demonstration in May of 2012, Space-X returned to the space station in October for its first official station resupply mission. This is great news as Dragon has made two incident-free flights to ISS within the last year, given the fact that there have been a total of four Falcon 9 flights all-together. I'm not saying Space-X should be having problems, but they have been remarkably problem free since their inception. They obviously have a great technical staff.

One thing though, every time I see the recovered Dragon capsule, I can't help but imagine that it's a big toasted marshmallow. If Space-X ever feels like pulling off an April fools day prank, they could run a photo of a recovered Dragon capsule atop a simulated chocolate bar and graham cracker platform and sell it as "the World's Largest Smore".

The next Dragon flight to ISS is scheduled for March of 2013. Fantastic Job Space-X, and keep up the good work!

Sunday, August 26, 2012

Bon Voyage Neil Armstrong

The first man to walk on the moon has passed on to his next great journey. Neil Armstrong passed away yesterday at the age of 82 due to complications with coronary surgery. Not only was Mr. Armstrong the first man to step onto the moon's surface, but it was he was the lunar module's (LEM's) pilot, who took over control of the LEM's automatic landing program during the final approach in order to avoid a field of car-sized boulders and thus avoid the first extra-terrestrial space disaster.


Before joining the space program, he was a test pilot. He was also an engineer. He was one of the few pilots to fly the X-15. After joining the space program, he flew on the Gemini 8 mission, rendezvousing and docking (another first) with an Agena booster in low earth orbit. He was an exemplary pilot with nerves of steel, but in person a retiring person, averse to being in the spotlight. Fame did not suit him.


Like so many others, I would've liked to have met him. But who wouldn't? I have met a few of the Apollo astronauts in passing. But there are fewer and fewer left these days. Eight of the original twelve moonwalkers are still with us, but they are all in their 80s. The time may come when no-one on Earth will be left who has been on the moon, or any other celestial body for that matter. If that time comes, who will inspire our kids to be the next bunch of explorers to inspire future generations?


Farewell Mr. Armstrong. Godspeed wherever you have gone.

Wednesday, August 08, 2012

Mars Science Laboratory is a "Curiosity" on Mars

I'm sure any potential Martians were quite surprised when the car-sized "Curiosity" rover (a. k. a. Mars Science Laboratory) landed on Mars. Congratulations to JPL for an extraordinary job well done. The picture above was taken by the still functioning Mars Reconnaissance Orbiter as Curiosity descended under parachute. I don't know what is more remarkable -- that one Mars mission took pictures of another Mars mission's arrival or that Curiosity landed in one piece.
At first glance, the proposed landing technique for the rover seemed insane. Its supposed to work this way: The rover and all of its landing paraphernalia enters the Martian atmosphere behind its heat shield at very high speed. After the heat shield has done its job and the rover has slowed down enough, the heat shield is ejected and the main parachute is deployed (see picture above). (NOTE: Since the martian atmosphere is quite thin, parachutes don't provide the same braking power as we Earth-dwellers enjoy. In the case of Curiosity, its speed was reduced from Mach 2.2 (about 1400 mph) to about 220 mph. This is why Mars landing craft need rocket breaking to land on Mars in one piece.) Somewhere in the process "floating" down towards the martian surface by parachute the rover prepares its wheels and such for surface operations and then lowers itself several meters by cable to end up suspended below a rocket powered platform. This is called the "sky crane" configuration. In the last few seconds, the rockets on the platform fire and bring the rover to a gentle stop on the Martian surface. At about the same time as the rover touches down, the cables holding the rover to the rocket platform are cut and the rocket platform flies off somewhere other than on top of the Curiosity rover. A better explanation for this process can be found here. So congratulations to NASA and to the engineer who came up with this bold landing plan!

Congrats to SpaceX for Successful Dragon ISS Meet-up.

This post is long overdue, but I feel that I must at least say something. On May 31st, the first commercial flight to ISS concluded with a successful splash landing into the Pacific Ocean off of Baja California. The capsule was successfully recovered. This event topped off a flawless first flight to ISS. More images from the flight are available at the SpaceX website, particularly in the section of the website devoted to the Dragon Spacecraft. According to the SpaceX launch manifest, Dragon will run resupply missions to ISS 11 more times between now and the end of 2015. One side comment. Is it just me, or does the Dragon look just like a giant toasted marshmallow in the recovery pictures?

Tuesday, June 05, 2012

Venus Transit Today!!

You'll need a telescope and a hefty sun filter for it, but the Venus transit is happening today, starting at 3 PM on the west coast and lasting 6 hours, so well after sundown for all you west-coasters. If you're in Hawaii, the view should be better. As of this posting, the event has already begun.

Tuesday, May 22, 2012

The SpaceX Dragon in Orbit

Courtesy NASA via Twitter. That was an amazing launch! No delays or upsets. Very uneventful. I caught the broadcast from Spacex.com (broadcast from their Hawthorn, California facility) starting at about T minus 8 minutes (somewhere around 12:30AM PST/3:30AM EST). As the clock counted down to zero, the Falcon 9 lifted effortlessly off the launch pad in Florida and zoomed up into the night. What followed was about 11 minutes of holding my breath as Dragon climbed up into orbit. There was decent video footage from the rocket most of the way through the flight. Highlights for me were the main engine cutoff and stage jettison (which was sooner than I expected), the second stage burn in the dark, and finally the deployment of the Dragon's solar panels which occured as Dragon reached orbit. It's impressive how much acceleration the second stage provides in the short amount of time the second stage is operating. It accelerated the Dragon from about 2 or 3 km/sec to 7.4 km/sec. at burnout, and it's engine glowed such a cheery shade of orange too (intentionally, and very nice since the engine provided the only light for the camera to see anything)! As Dragon reached orbit, and as the broadcast showed the solar panels deploying into the sunlight, a thunderous roar erupted from the apparently huge crowd at SpaceX's Hawthorn California plant. It's really cool when the company turns out to watch a launch in the middle of the night! Congratulations SpaceX!

Monday, May 14, 2012

Big Bang Theory 2012 Finale

If you're a space buff and haven't been watching the Big Bang Theory, I only have one thing to ask you.. "What the hell is wrong with you?!" The final episode for the 2012 season included Howard Wolowitz being launched to the International Space Station on a Soyuz capsule along with Pasha Lychnikoff and Mike Massimino. I was hoping Pasha was a real-life cosmonaut (he is an actor), I had to settle for the real-life NASA astronaut Make Massimino (who is rapidly becoming an actor). Both were brilliant and conveyed the spirit of flying up on a Soyuz capsule quite well. One thing I didn't see was the instrument poking stick that seems to be part of every Soyuz flight. That and the dangly bit/fuzzy dice hanging off of the instrument panel. Believe it or not the stick and the dangly bit are functional. The stick is used to manipulate panel switches during the early stages of the flight while the cosmonauts are anchored into their acceleration couch. The dangly bit lets the cosmonauts know when the engine burn is complete. To be honest, I'm not sure the dangly bit is more for the cosmonauts or for the TV audience.

Trim-Tabbing a new Space Race, or a None-To-Subtle Method of Engaging the Public

It has been a busy and hectic few years of work. As a consequence, I haven't touched this blog in some time. But after a recent weekend well spent reading irreverent comics, I came up with a whimsical way of focusing national pride and energies toward space colonization. Most of the time, space advocates attempt to either appeal to humanity's better natures or to appeal to humanity's sense of self-preservation. Both of these methods have their limitations, especially when huge swaths of the population don't care and other huge swaths of the population are actually happier when things are getting worse, because it feeds their delusions of the 'end of days'. I have chosen an entirely different approach -- an approach that is relatively inexpensive and one that appeals to the population's collective sense of indignation and anger.

Anger has propelled humanity further technologically than any other human emotion. One need not look very far to see that a large number of inventions got their start in the world's weapons factories. The internet, for instance, was developed by DARPA to create a way for machines to communicate after a nuclear war. Integrated circuits -- those very useful and tiny number crunchers were first incorporated into ICBMs before they became ubiquitous in phones and toasters. The entire NASA 60's space program used vehicles from world war 2, in the case of the Mercury/Redstone (the V-2 rocket bomb), and from the Cold War, in the case of Mercury/Atlas (the Atlas ICBM) and Gemini (the Titan ICBM). Meanwhile over in Russia things were not so different. The old Soviet workhorse has been and will likely stay around for several more decades, the old reliable R-7 ICBM heavy lift vehicle. The R-7's original purpose was to send inordinately large thermonuclear warheads on their way to the U.S., now it is the basis for all Soyuz and Progress launchers.

So here is my plan to raise humanity's ire. First off, I need to borrow about 100 million to 1 billion dollars, preferably under the table. I need it to build a large number of independently targetted high power lasers to incorporate into a very large laser array (VLLA). The purpose of this array of lasers is to generate enough heat in a 100 meter diameter spot on the surface of the moon to melt the local regolith. I have had experience with Lunar Soil simulants and I know that when it is melted by an extreme heat source, it turns jet black, which creates a heck of a contrast between the melted regolith and the non-melted grey-white regolith dust. The good news is this only effects the surface of the regolith, the ground about one quarter of an inch below the surface essentially remains unscathed. The bad news is that unless someone goes up there to clean it off, it remains part of the lunar surface for centuries.

So my plan is simple. With the VLLA in place, I plan to write a series of obscenities across the lunar surface. Obscenities that would be plainly visible from earth with a modest telescope or binoculars. Obscenities designed to offend the maximum number of people on the planet. Once complete, even if the project is scrapped earthside, even if I and the project backers are captured and strung up by our thumbs til dead, the obscenities will remain until somebody goes up there to clean them off. It's the cleaning the obscenities off that I'm trying to encourage.

Is this really a good idea? Probably not. But as a space exploration buff I yearn to make some kind of contribution to mankind's birth from planet earth. And as a middle aged man, I realize that my window of opportunity to make that difference, which was tiny to begin with, is shrinking with the passage of the years. So is anybody else interested in making a big mark on the universe? Please let me know.

Saturday, May 22, 2010

Intricate Space Toilets

I caught this video over at Space.com and wanted to share it. I found the video very informative, and surprisingly candid. Zero-g toilets are.. well.. complicated. Hardly the thing you want to fool with if you're in a rush. Yet another example of a function that would be better served in a spinning space station of one sort or another.