Engineer in Training

Astronaut Candidate Program application received!

You might know I submitted my application back in Jaunuary to NASA's Astronaut candidate program.  Well, I can now confirm that they have received it at the Selection Office!  One (tiny) step closer for me (and the thousands of other applicants)!

I really wish it had been a Physical Education exam...

Well...after winding down somewhat from yesterday's PE exam (in order to get licensed as a Professional Engineer in Florida), I'm still not sure how I feel about it.  To anyone thinking of taking it, my advice is...do more problems!  I don't care how many you've done, it's crunch time in the test when you only have about 6 minutes per problem. 

So, just to let it all out here (because my poor family is tired of hearing me whine...):

After a couple months of studying and becoming a pseudo-hermit, I dragged myself out of bed at 5 and managed to report to the Orange County Convention Center in Orlando at 7 am.  I'm not exaggerating when I say that place is ENORMOUS, and we really had to walk at least half a mile to get to the exam room (and I was foolishly lugging my books without a rolling device to assist.  I think I strained a bicep.)

The test started promptly at 8 am, and the morning session was not that awful.  For those taking the Mechanical Engineering exam, the "breadth" test in the morning covers "the basics," most of which you will recall and probably not have too much difficulty with as long as you have refreshed your memory.  After a slight interruption by a fire alarm, I finished and felt somewhat OK about that portion.

For the afternoon session I had chosen Thermal Fluids.  During my review process I REALLY wished I had selected HVAC, because Thermal Fluids covered a lot of applications which were only touched on briefly during school.  Hydraulic horsepower, water hardness, combustion...  studying for these areas was somewhat "new material" for me.  I realized that the classes I was best at in school were Thermo and Heat Transfer - and not so much Fluids.  Although I had most of the fundamentals stored somewhere in my brain, I found it challenging to apply them quickly in the limited time of the exam.  By the end of the afternoon session, I was out of time with quite a few questions unanswered and on the verge of tears.  Yep.  Fingers crossed that a few of those "C's" I bubbled in were correct...

After decompressing, I would say the test is by no means impossible, and the problems themselves would not be exceeding difficult... if you had 15-20 minutes for each one.  What is challenging is being able to immediately know what the problem is asking and either recall or know where to find the formula in your reference material (and then solve it with proper unit conversions and no table- or graph-reading errors in 6 minutes).  I covered nearly all of the material in the Mechanical Engineering Reference Manual and was familiar with that, but did not spend enough time doing problems.  My takeaway advice for those doing the ME PE...

• For the morning session, if you have to allocate your time resources, don't spend an inordinate amount of time cover the Machine Design material.  Although this area is about a third of the morning session, it is only 1/6 of the test overall (assuming you are taking HVAC or Thermal Fluids concentration area).  I found the problems to be mostly pretty simple and the time I spent reviewing that area of MERM was almost not necessary.  Maybe I lucked out with some simple tangential velocity problems and weld symbols, but I think if you have basic physics knowledge and good problem solving abilities, you could almost get through those questions with little preparation.  Obviously if you are doing this as your depth exam, disregard this advice.
• Spend waaaaaaaay more time doing problems in your focus area!  I know this sounds obvious, but I did not do it and really wish I had.  All the questions on the exam count the same, so if you are well-versed in your focus area you should have a good shot at two thirds of the problems. 
• Follow general test-taking strategies - skip the problems that are going to take you too long and try to get the "easier" ones correct.  Again, obvious but I got caught up in a mindset of, "Oh, I KNOW how to do this one," and then spent far too much time on some of the problems at the beginning of the second session. 

All said and done, the PE seems "doable", but you have to put in the time.  If you have been out of school a while, and particularly if your job doesn't actually involve doing any work in the subject area of your test (as mine did not), then you really, really, really need to study and do a LOT of problems. Unless you happen to be a genious.  Which I am not.

Well, I will be waiting and wondering if I passed for the next several weeks.  I honestly do not know what to expect when I get my results... but am trying to be optimistic so as not to torture myself over the mistakes I already know I made during the exam.  Everyone told me the PE Exam is NOT something you want to take twice, and I very much hope I don't have to validate that statement. 

Thanks to everyone who gave me advice on the exam and/or put up with me during this process!  Let's all keep our fingers crossed that I don't have to do it again...

I have applied for astronaut candidacy!

I have officially applied to be an astronaut!  Me and thousands of other people, but still exciting! 

Y... esto es mi primero POST en espanol!  He solicitado la posicion de astronauta por NASA!  Yo y miles de otras personas, pero todavia emocionante!

Ever since I first saw "Space Camp" when I was about 5, I have dreamed of becoming an astronaut.  Over the years, I have developed a more legitimate interest in space and an understanding that befriending a robot probably isn't going to get me there.  But I digress...

If you are one of the approximately 4000 people who applied during the last application cycle, or those who are applying this time, you are familiar with the requirements.  This is the first year I'm eligible to apply based on my education and years work experience.  Typically there has been an opportunity to apply every 2 years, so I will be applying biannually until I have the right skill set ... even if that's 15-20 more times!!!  Hopefully I will be successful sooner than that! 

This video will pump up fellow space nerds =-)

For those of you reading this, I hope you will go take a chance on something you don't think is possible!  Find the people who believe in you and your dreams, and surround yourselves with their energy.  My husband, family, and friends encourage me when I doubt myself, and that pushes me to keep moving toward my goals.  Things may not go exactly as planned, but as Woody Allen has said, "Eighty percent of success is showing up" ... and showing up is something that is possible!

"The journey is the reward." - Chinese proverb

He solicitado candidatura de astronautas!

Desde la primera vez que ví la pelicula "Space Camp", cuando tenía cinco años mas o menos, he sonado con hacerme astronauta.  A tavés de los anos, mi interés en el espacio ha crecido y he aprendido que hacerme amigo de un robot no me va a llevar allí.  Pero estoy divagando (tuve que buscar la traduccion de esta frase ... se usa asi?) ...

Si ud. es una de las 4000 personas, aproximadamente, que solicitó el trabajo durante el ciclo de solicitud anterior, o una de las que lo están solicitando esta vez, seguro que concoce bien los requisitos.  Este es el primer año que he satisfecho estos requisitos, los cuales incluyen experiencia de trabajo y de educación.  Normalmente, hay una oportunidad para solicitar el trabajo de astronauta cada dos años, asi que yo voy a estar solicitando cada dos anos hasta que tenga las competencias para obtener la posicion... si tengo que solicitar 15-20 veces mas, lo voy a hacer!!!  Espero tener éxito mas pronto, pero ... vamos a ver!

Este video les va a interesar los nerds como yo =-)

Para ustedes que están leyendo este articulo - primero, gracias por ignorar todos los errores de gramática, y segundo, espero que ud. intente conseguir su meta, la que le parece imposible.  Pase tiempo con la gente que cree en ud. y sus sueños, y rodéese con su energía.  Mi marido, familia, y amigos me animan cuando tengo dudas sobre mi misma, y eso me hace seguir trabajando para conseguir mis metas.  Las cosas no siempre pasan como esperamos, pero como dijo Woody Allen, "Ochenta por ciento del éxito es aparentar" (lo siento por la traducion...enviame un email y dime como debo escribirla!)... pero todos nosotoros si podemos aperecer...o estar donde nesecitamos estar...

"El viaje es la recompensa." -Proverbio chino

What is MeganScope?

Welcome to my page and thanks! 

Over the past few years, I've found myself often thinking about "I'd like to do this," or "I should really spend more time doing that," but then rarely taking action.  Although I consider myself a motivated person, sometimes I just need some sort of accountability to light a metaphorical fire under my sometimes lazy butt.  That is a main reason why I started to "blog." Well, I guess "accountability" might not be the best word, since I'm not sure how many people actually read my posts... so please, if you have any comments, suggestions, complaints, etc, let me know! 

Y ahora...MeganScope en espanol (kind of)

Y ahora, a la sugerencia de mi profesora de espanol, voy a intentar a traducir varios articulos de mi blog para mis amigos hispanohablantes (aunque, casi todos de ellos hablan ingles mucho, mucho mejor que you hablo/escribo espanol)...  Si (o... cuando) tu ves errores con la gramatica de mis posts, por favor enviame un email!  Una de mis propositos para el ano nuevo es practicar escribir y hablar mas (en ingles, o espanol, o spanglish, o lo que sea). 

Tengo que buscar como escribir los acentos ...

What is MeganScope?

If you are a reader, you might also gather that I have a lot of interests - kind of a "Jill of all trades, master of none."  My domain name stems from this idea. 

First off, a "megascope" is an actual thing - dictionary.com describes it as "a modification of the magic lantern (a device having an enclosed lamp and a lenslike opening, formerly used for projecting and magnifying images mounted on slides or film), used esp. for throwing a magnified image of an opaque object on a screen, solar or artificial light being used."

So...why the name www.meganscope.com? 

I find that there are so many fascinating subjects that I get sidetracked and sometimes it is difficult to focus enough on one topic.   Through recording a bit of my stream of conciousness and writing about what piques my interest on a particular day, I hope to magnify or shed some light on the topics about which I (Megan) am most intrigued... hence Megan + megascope = meganscope.  In linguistics, one of my many interests, this is a type of blend.  More specifically, it is a "phonemic overlap", where "a syllable or part of a syllable is shared between two words" (thanks again Wikipedia!).  Side note: Wikipedia is responsible for many hours of learning tangents in which I click nested link after nested link until I don't know how "blend" led me to the "Garonne" river. 

Over time, I hope this discipline of recording my thoughts and writing about my interests will help me better identify what I am most passionate about.

About Me

OK, anyway, I digress (as usual).  I appreciate you taking the time to read this, and I'll work on being more concise.  A little about me:  I'm from Florida's "Space Coast." My husband Andrew is in the US Army and you can find him around the web here. 

My ultimate goal is to become an astronaut, but until I am eligible to apply, I'm always trying to learn something new. I have a strong belief in setting goals that seem slightly unattainable.  In striving to achieve a lofty goal, regardless of the ultimate outcome, one will most certainly grow and improve as an individual.

I have a BS and MS in Mechanical Engineering from Florida Institute of Technology, and am two classes away from completing a Master's in Systems Engineering from Stevens Institute of Technology. I work at Kennedy Space Center supporting NASA's Expendable Launch Vehicle program. When I'm not working, I'm usually doing something active outside or cooking for myself, friends, and family. I enjoy cycling, studying Spanish, hiking, swimming, reading, writing, running, cooking, and, less nobly, watching TV, going to the movies, and eating a giant tub of popcorn.  A few big events on the horizon include the 2011 Melbourne and Beaches Half Marathon, the 2011 Boston Marathon, completing my Advanced Open Water SCUBA certification, and learning how to fly sailplanes.

Hope you enjoy and thanks for your support!

NASA Astronaut Selection Process Announced

Contrary to what my recent blog activity might suggest, I have been very busy with work (only ONE MONTH until the first launch attempt for Mars Science Laboratory), applying to take the Professional Engineering examination in Florida (April 2012), studying for the GRE (PhD starting in 2012 hopefully!), and also enjoyed some time with old friends from Florida Tech at our Women's Soccer Alumi Weekend.

But, the most exciting thing of the last few weeks is the announcement that NASA Astronaut Selection will open in November!  Although only a very, very, VERY small percentage of applicants are actually selected to be candidates, I now have at least the basic qualifications to apply. I am a U.S. Citizen (thanks Mom and Dad!), I have the undergrad degree in engineering (Mechanical, also a graduate one), I have >3 years of professional experience, and I should be able to pass NASA flight physical! 

I'm looking forward to giving it my best effort - this is some literal shooting for the stars!  The best case scenario is me on my way to the moon, and the worst case is framing my rejection letter for posterity.  Both would be pretty cool (if not quite equally so).

 The closest I've been so far - Endeavour.

"Shoot for the moon.  Even if you miss it you will land among the stars."
-  Les Brown

STS-135 rollover and rollout pics

On May 17, I went out to watch the orbiter Atlantis make it's final journey from the Orbiter Processing Facility to the Vehicle Assembly Building.  I got a few pictures:

Later that day, a coworker sent out this link with the following satellite picture:

The following week, I got a chance to take family and friends out to see the final rollout of STS-135.  This is when the entire shuttle - orbiter, tanks, and all travels out to the launch pad on the giant tank-like crawler.  In my last post I wrote about the landing of STS-134, which took place at 2:35 am on June 1.  It was just a few hours prior to that (around 8:45 on May 31) when the rollout commenced.

Here is a picture of my lovely sister Maris and myself in front of the VAB, followed by me and Cari.

 

 

 

 

 

 

 

 

 

The viewing area was packed, and it was a bit sad to think that this was the last rollout of Atlantis.  Not sure I was feeling the music such as "Proud to be an American" blaring over the loudspeakers, but I guess to each his own or something.  I am glad I got to share this with Maris, Adam, Dave, and Cari.   

STS-134 launch and landing

It has been a while since my last post!  With my final projects for my Decision Analysis class at Stevens Institute of Technology, presenting a paper at the INCOSE Conference on Systems Engineering Research, and a lot going on at work (more on all of this later), I have been lacking motivation to be on my computer after work.  In any case, some updates are in order!

With the end of the shuttle program in sight, NASA is making an effort to get as many people as they can to see the remaining big events.  Those of us lucky to work at KSC are benefiting from this.  You may have seen my last post on the STS-134 rollout.  In addition to rollout, I also witnessed both launch and landing!

Launch took place in the middle of my normal workday, so I stepped outside the O&C building with my coworkers and looked north.  Unfortunately, there was some low cloud cover and we could only see the shuttle for a short time before it disappeared out of site.

 

A coworker forwarded me some pictures from above the clouds - I don't know to whom to credit these images, but if anyone knows, I will add that information. 

Finally, I was able to go out to the Shuttle Landing Strip to watch the final landing of Endeavour. Here's my pass and pin.

We had to board the bus about one horu prior to the first scheculed laniding opportunity, or just prior to the deorbit burn.  After the crew makes that maneuver, there is no turning back and they are heading back to Earth.  We rode the bus from the Launch Control Complex parking lot over to the Shuttle Landing Strip and waited.  Finally, Endeavour was in range and the dual sonic booms sounded loudly, startling me and the rest of the crowd.  It was difficult to see the final approach, but the video below captures the view I had.  You can see the chute behind the orbiter over the trees and Endeavour rolling to a stop.

Download Final Endeavor Landing Video (mvi)

Hope you enjoy!

STS-134 rollout picture

I got a pass to take a carful of people out to watch the rollout!  It's hard to believe that there is only one more rollout to go.

My awesome dad!

Me and Allison =-)

Reflections on “Against the Gods: The Remarkable Story of Risk”

I am taking "Decision Analysis" this semester through Stevens Institute of Technology, which is part of the reason I have been epically failing at posting anything new.  However, I had to sit down and write a bit tonight for an assignment, so I am posting here.  The book is “Against the Gods: The Remarkable Story of Risk” by Peter L. Bernstein, and I HIGHLY recommend it to just about everyone - not just engineers or economists. 

Bernstein presents the evolution of the understanding of risk and its application and influence on society in general and decision making in particular.   Bernstein takes us from the Greeks, who “presumably … admitted no possibility of regularity in earthly events” and the perspective that “precision was the monopoly of the gods (44)” through the centuries to an environment where the mathematical concepts of probability and statistics are well understood.  However, the Greeks were not entirely incorrect – regularity in decision making is still not, nor is it likely to ever be, easily achievable.  Rational decision making is facilitated by the understanding that risk is based on the somewhat objective parameters of probability and severity.  However, the weight the decision maker places on the outcome is also crucial, and is very subjective.  Better decisions can be made when the situation is well understood; the more information, the better.  However, no matter how much data mining is done, all decisions are made on the basis of limited data.  Trending is one way to understand the past and is often the basis for making decisions about the future.  When paired with the concept of a normal distribution and the law of law numbers, the principle of regression to the mean can assist decision makers.  Unfortunately, even when a decision situation is well understood, facts are subjective as is utility.  The utility of additional gain of a quantity also tends to decrease and is dependent on the quantity previously possessed.  The key point of the book is that despite all the variability possible in the decision making process, decisions made using disciplined procedures will, over time, outperform guesses, fate, destiny, or other ad hoc methods. 

The outcome of a decision has uncertainty.  This uncertainty typically involves a desired and undesired outcome.  Risk is tied to the occurrence of the undesired outcome, or the non-occurrence of the desired outcome.  Risk is based on probability, severity, and also the importance that the desired outcome will occur (p. 104), therefore “both gravity and probability should influence a decision (p. 71).”  Bernstein writes that “a decision should involve the strength of our desire for a particular outcome as well as the degree of our belief about the probability of that outcome.”  The discussion in the book that the weight or importance placed on an outcome should factor into the decision making process is one that seems very logical but is a step that is also neglected or misused.  I often don’t consciously consider the importance of an outcome when making a decision, or only consider the short-term implications.  For example, I often decide to stay up after finishing my work to watch a show or movie.  The consequence of the decision to stay up later is that I will be more tired than if I were to go to bed at that time, and the probability that I will be more tire tired is nearly unity.  In making that decision, I am weighing the pleasure of relaxing in front of the TV to be more important than my mental acuity at work the next day.  However, in such a case, I often ignore or fail to consider the weight of the consequence one step down from the immediate outcome.  Considering how I weight the outcomes of my decisions will be one takeaway from this book.

The idea of weight also made me think that some people will put more importance on the severity of the outcome than on the probability (the example from the book being the one elephant in Russia that was killed by a bomb – severity was high, probability was very low).  For example, for some people the fear of flying is overwhelming; they see the practice as incredibly risky and dangerous.  Of course, most people place a high importance on their own safety.  But, people who prefer not to fly for this reason are considering the severity of the undesired occurrence (a crash) much more than the very low likelihood of that event.  

A second key concept from “Against the Gods” is that all decisions are made on the basis of limited data (p. 73).  We know the key components of risk (probability, severity, and weight), but how are these parameters quantified?  The likelihood of a future event is often (and subjectively) extrapolated from history (e.g. stock market) or based on physics and statistics (e.g. spin of a roulette wheel).  Whether in deciding to invest in a particular index fund or to bet on number 23, “we all have to make decisions on the basis of limited data (p. 73).”  Bernoulli explained we must assume that “under similar conditions, the occurrence (or non-occurrence) of an event in the future will follow the same pattern as was observed in the past.”  Furthermore, “an estimate of probabilities after the fact also is impossible unless we can assume that the past is a reliable guide to the future.  The difficulty of that assignment requires no elaboration.  The past, or whatever data we choose to analyze, is only a fragment of reality.”  So, Bernoulli summarizes that we have to try to obtain as much data as possible, but be aware that this data is not comprehensive.  This fact is very useful to recognize, if maddening.  The question remains – how much data is enough to make a sound decision?  And is the amount of data dependent on the importance of the decision?  To these questions, I answer, “it depends,” and “yes,” respectively.  It becomes apparent that setting up a framework for a decision is not a linear process, but rather an iterative one in which it can be beneficial to use feedback from your own thought process in order to optimize the decision framework.

Regression to the mean is the third important topic from “Against the Gods.”  Francis Galton was a pioneer in this area, finding that the offspring of a couple tended to be closer to the average height than the height of the parents.  Essentially, a shorter couple would tend to have children taller than the “Height of Mid-Parents” (average height of parents), and taller couples would have shorter children.  Quetelet contributed to the idea of normal distribution, which is based on the population mean, and found that the measurements of people tend to fit the “bell curve.”  While regression to the mean can be useful in making decisions about the future, it also ties back to the concept of limited data.  The mean at any point is only a mean of a snapshot population in history, thus is again “a fragment.”  For example, when considering height, there would be many other parameters that contribute to the value (e.g. nutrition), such that the mean height of the population of London in the 1800s would not be a good indicator for predicting height of the population of Taiwan in the 21^st century.  In terms of the economic environment, it is “perilous in the extreme to assume that prosperity is just around the corner simply because it has always been just around the corner (173).” 

Better understanding of regression to the mean will be useful in such areas of my life as investing.  My age and circumstances have positioned me favorable to invest from the beginning of my career in a bear market and to have confidence that the market will improve for years to come.  Knowing that what goes up must regress to the mean will make me more likely to adjust my portfolio in the future to a more conservative distribution to protect myself against future recessions.

We have discussed methods to better determine the probability that a particular outcome will occur, which can then be used to aid in the decision-making process.  However, determining the gravity or severity of a particular outcome is not cut and dry.  The fourth key concept is that facts are subjective.  Early in the book when discussing existence of God, Bernstein points out that whether or not to believe in God is “a choice in which the value of the outcome and the likelihood that it may occur will differ because the consequences of the two outcomes are different (p. 70).”  Bernstein state that the “role of facts is to provide a single answer to expected value (the facts are the same for everyone), [but] the subjective process will produce as many answers as there are human beings involved (105).”  An example might be a water treatment company that is going to ensure that the microbe level in treated water must be less than x%, which will cost $y.  At that level, the chance of an illness related to the water quality is z%.  Consumers would want z=0, where the company will want to minimize y.  A certain cost $y corresponds to a particular microbe level x%.  It is clear that the two stakeholders here are aware of the same facts, but the facts mean different things to each group. 

A good example of this that I deal with is risk aversion.  Every person has a different level of risk tolerance corresponding to each scenario.  The facts may be the same for two people but could easily result in opposite decisions.  I typically like to arrive at the airport such that I am in the security line no later than 45 minutes before my flight.  Since I typically print my boarding pass at home and rarely check a bag, this means that I walk into the airport about 45 minutes before my departure time.  I do not think it very likely that I will miss a flight, and also feel that I am able to control the situation even if it is not ideal (e.g. ask a TSA representative if a shorter line is available if I am going to be late).  My husband, on the other hand, may have the same facts as me (flight status, weather conditions, parking availability) and the same conditions (no luggage, boarding pass in-hand), but will come to a different conclusion.  He always decides to arrive in the airport at 90 minutes before the flight.  The facts are the same, but the decision is different.

We have learned that incomplete data and subjective interpretation of the facts make decision-making challenging.  Compounding this is the fifth concept from “Against the Gods,” which is that utility is subjective and is not a constant.  Bentham stated that utility is “that property in any object, whereby it tends to produce benefit, advantage, pleasure, good, or happiness (p. 189).”  Bernoulli further described that “the “utility resulting from any small increase in wealth will be inversely proportionate to the quantity of goods previously possessed (p. 105).”  Utility is tied to the risk parameter of “weight” or “importance.”  If a decision could result in an increase in wealth, that increase would correspond to a certain utility.  The utility, however, does not remain proportional to that initial increase.  Bernstein says that “rational decision-makers will try to maximize expected utility - usefulness or satisfaction - rather than expected value.   Expected utility is calculated by the same method as that used to calculate expected value but with utility serving as the weighting factor.”   The converse of gain is perhaps more severe:  “the disutility caused by a loss will always exceed the positive utility provided by a gain of equal size (p. 112).” 

Kahneman and Tversky later deviated slightly from this description of utility, finding that the “valuation of a risky opportunity appears to depend far more on the reference point from which the possible gain or loss will occur than on the final value of the assets which would result (p. 274).”  This explanation resonated with me.  As a relatively inexperienced full-time engineer, I have recent memories of having almost no discretionary income while attending college.  Back then, gambling $25 on a single hand of Blackjack seemed ridiculous.  While I am not the type to gamble more than once every few years, my current income makes the possibility of losing $25 on Blackjack more palatable.  This simple example can be extrapolated to the way I handle my personal investments.

Finally, and in summary, decisions made using disciplined procedures outperform “seat of pants” methods (p. 336).  The possibility of losing is an integral part of risk management (p. 234), and the probability, severity, and weight of that consequence must be understood.  There are many methods to gather data, make predictions, and assign probability, but the decision makers must understand that no data set is ever complete, nor can it ever be fully accurate.   Facts are also subjective and “uncertainty lies in the intentions of others (p. 232)”.   The unknown intentions of others can lead to speculation about strategies to, for example, hedge against loss or to capitalize on a perceived weakness in the stock market.  A volatile stock market may be frightening to some, but “volatility represents opportunity rather than risk, at least to the extent that volatile securities tend to provide higher returns (p. 261).  However, volatility doesn’t mean anything in terms of risk “until coupled with a consequence” (261).  Again it is clear that a decision framework is essential but creating one is not a linear process.

Today’s technology gives us the advantage of being able to analyze vast amounts of data, to run different predictive models, and to assist in taking subjectivity out of evaluation criteria.  However, a computer “only answers questions; it does not ask them (p. 336).”  We must understand the parameters that make up risk along with the shortfalls of any decision-making process.  It is also critical to know that we are always making decisions with imperfect or incomplete data, and that there is really no such thing as a “sure thing.”  Creating a decision framework in which the decision maker is identified, the possible outcomes are understood, the importance of the outcome to the decision maker is clear and the consequence of failure is defined is crucial to making a rational, sound decision. 

The pale blue dot

What a fabulous video from Michael Marantz

EARTH: The Pale Blue Dot from Michael Marantz on Vimeo.