Tag Archives: space

nuclear reactors on the moon

According to Breitbart (yes, I occasionally peruse Breitbart to see what propaganda spin they are putting on current events and because they occasionally pick up on a story others do not), Russia and China are considering a joint moon research base powered by a nuclear reactor. NASA is also considering a research base powered by nuclear power. This makes sense to me in a technological sense. What is concerning is the end of an era of international cooperation symbolized by the International Space Station, which Russia has said it is backing out of this year. An international moon base would just make a lot of sense rather than competing national bases.

Now, for some fun science fiction references. In Kim Stanley Robinson’s 1993 novel Red Mars, which I enjoyed unlike his recent book Ministry for the Future which I couldn’t finish, the first thing humanity does when it gets to Mars is build a nuclear reactor.

In the 1968 Godzilla entry Destroy All Monsters, it is assumed that by the year 1999 humanity will have settled their differences and established an international moon base led by a world government. This is important because they will need to cooperate to deal with threats such as aliens and monsters.

And finally, let’s just watch the Russian space station Mir blow up in the 1998 movie Armageddon. In 1997, there really was an explosion and fire aboard the actual Mir, which the cosmonauts present were able to put out. In 2001, most of the station was intentionally burned up in Earth’s atmosphere, and the rest allowed to crash into the Pacific Ocean. The Mir was originally a Soviet project. NASA had plans to put up its own competing space station, but after the fall of the USSR the two countries agreed to cooperate on the International Space Station instead. Seems long ago now.

November 2022 in Review

Most frightening and/or depressing story: Asteroids could be used as a weapon.

Most hopeful story: A review of Limits to Growth suggests our civilization may be on a path to stagnation rather than collapse. Or, we may be on the cusp of a fantastic science ficition future of abundance brought to us by solar energy, asteroid mining (there are those asteroids again!), and biotechnology.

Most interesting story, that was not particularly frightening or hopeful, or perhaps was a mixture of both: I tried to put myself in Russia’s shoes and explain the Ukraine conflict, mostly to myself.

2021: Year in Review

As per usual, I’ll list out and link to the stories I chose as the most frightening, most hopeful, and most interesting each month in 2021. Then I’ll see if I have anything smart to say about how it all fits together.

Survey of the Year’s Stories and Themes

Most frightening and/or depressing stories:

  • JANUARY: A China-Taiwan military conflict is a potential start-of-World-War-III scenario. This could happen today, or this year, or never. Let’s hope for the latter. This is a near-term existential risk, but I have to break my own “rule of one” and give honorable mention to two longer-term scary things: crashing sperm counts and the climate change/fascism/genocide nexus.
  • FEBRUARY: For people who just don’t care that much about plants and animals, the elevator pitch on climate change is it is coming for our houses and it is coming for our food and water.
  • MARCH: In the U.S. upper Midwest (I don’t know if this region is better or worse than the country as a whole, or why they picked it), electric blackouts average 92 minutes per year, versus 4 minutes per year in Japan.
  • APRIL: One of the National Intelligence Council’s scenarios for 2040 involves “far-reaching changes designed to address climate change, resource depletion, and poverty following a global food catastrophe caused by climate events and environmental degradation”.
  • MAY: The Colorado River basin is drying out.
  • JUNE: For every 2 people who died of Covid-19 in the U.S. about 1 additional person died of indirect effects, such as our lack of a functioning health care system and safe streets compared to virtually all our peer countries.
  • JULY: The western-U.S. megadrought looks like it is settling in for the long haul.
  • AUGUST: The U.S. is not prepared for megadisasters. Pandemics, just to cite one example. War and climate change tipping points, just to cite two others. Solutions or at least risk mitigation measures exist, such as getting a health care system, joining the worldwide effort to deal with carbon emissions, and as for war, how about just try to avoid it?
  • SEPTEMBER: The most frightening climate change tipping points may not be the ones we hear the most about in the media (at least in my case, I was most aware of melting ice sheets in Greenland and Antarctica, collapse of ocean circulation patterns). The most damaging may be melting permafrost on land and methane hydrates underwater, both of which contain enormous amounts of methane which could set off a catastrophic and unstoppable feedback loop if released in large quantities.
  • OCTOBER: The technology (sometimes called “gain of function“) to make something like Covid-19 or something much worse in a laboratory clearly exists right now, and barriers to doing that are much lower than other types of weapons. Also, because I just couldn’t choose this month, asteroids can sneak up on us.
  • NOVEMBER: Freakonomics podcast explained that there is a strong connection between cars and violence in the United States. Because cars kill and injure people on a massive scale, they led to an expansion of police power. Police and ordinary citizens started coming into contact much more often than they had. We have no national ID system so the poor and disadvantaged often have no ID when they get stopped. Everyone has guns and everyone is jumpy. Known solutions (safe street design) and near term solutions (computer-controlled vehicles?) exist, but are we going to pursue them as a society? I guess I am feeling frightened and/or depressed today, hence my choice of category here.
  • DECEMBER: Mass migration driven by climate change-triggered disasters could be the emerging big issue for 2022 and beyond. Geopolitical instability is a likely result, not to mention enormous human suffering.

Most hopeful stories:

  • JANUARY: Computer modeling, done well, can inform decisions better than data analysis alone. An obvious statement? Well, maybe to some but it is disputed every day by others, especially staff at some government regulatory agencies I interact with.
  • FEBRUARY: It is possible that mRNA technology could cure or prevent herpes, malaria, flu, sickle cell anemia, cancer, HIV, Zika and Ebola (and obviously coronavirus). With flu and coronavirus, it may become possible to design a single shot that would protect against thousands of strains. It could also be used for nefarious purposes, and to protect against that are ideas about what a biological threat surveillance system could look like.
  • MARCH: I officially released my infrastructure plan for America, a few weeks before Joe Biden released his. None of the Sunday morning talk shows has called me to discuss so far. Unfortunately, I do not have the resources of the U.S. Treasury or Federal Reserve available to me. Of course, neither does he unless he can convince Congress to go along with at least some portion of his plans. Looking at his proposal, I think he is proposing to direct the fire hoses at the right fires (children, education, research, water, the electric grid and electric vehicles, maintenance of highways and roads, housing, and ecosystems. There is still no real planning involved, because planning needs to be done in between crises and it never is. Still, I think it is a good proposal that will pay off economically while helping real people, and I hope a substantial portion of it survives.
  • APRIL: Giant tortoises reach a state of “negligible senescense” where they simply don’t age for a long time. Humans are distant relatives of giant tortoises, so maybe we can aspire to this some day. They are not invulnerable to injury and disease.
  • MAY: An effective vaccine for malaria may be on the way. Malaria kills more children in Africa every year than Covid-19 killed people of all ages in Africa during the worst year of the pandemic. And malaria has been killing children every year for centuries and will continue long after Covid-19 is gone unless something is done.
  • JUNE: Masks, ventilation, and filtration work pretty well to prevent Covid transmission in schools. We should learn something from this and start designing much healthier schools and offices going forward. Design good ventilation and filtration into all buildings with lots of people in them. We will be healthier all the time and readier for the next pandemic. Then masks can be slapped on as a last layer of defense. Enough with the plexiglass, it’s just stupid and it’s time for it to go.
  • JULY: A new Lyme disease vaccine may be on the horizon (if you’re a human – if you are a dog, talk to your owner about getting the approved vaccine today.) I admit, I had to stretch a bit to find a positive story this month.
  • AUGUST: The Nordic welfare model works by providing excellent benefits to the middle class, which builds the public and political support to collect sufficient taxes to provide the benefits, and so on in a virtuous cycle. This is not a hopeful story for the U.S., where wealthy and powerful interests easily break the cycle with anti-tax propaganda, which ensure benefits are underfunded, inadequate, available only to the poor, and resented by middle class tax payers.
  • SEPTEMBER: Space-based solar power could finally be in our realistic near-term future. I would probably put this in the “interesting” rather than “hopeful” category most months, but I really struggled to come up with a hopeful story this month. I am at least a tiny bit hopeful this could be the “killer app” that gets humanity over the “dirty and scarce” energy hump once and for all, and lets us move on to the next layer of problems.
  • OCTOBER: The situation with fish and overfishing is actually much better than I thought.
  • NOVEMBER: Urban areas may have some ecological value after all.
  • DECEMBER: Covid-19 seems to be “disappearing” in Japan, or at least was before the Omicron wave. Maybe lessons could be learned. It seems possible that East Asian people have at least some genetic defenses over what other ethnic groups have, but I would put my money on tight border screening and an excellent public health care system. Okay, now I’m starting to feel a bit depressed again, sitting here in the U.S. where we can’t have these nice things thanks to our ignorant politicians.

Most interesting stories, that were not particularly frightening or hopeful, or perhaps were a mixture of both:

  • JANUARY: There have been fabulous advances in note taking techniques! Well, not really, but there are some time honored techniques out there that could be new and beneficial for many people to learn, and I think this is an underappreciated productivity and innovation skill that could benefit people in a lot of areas, not just students.
  • FEBRUARY: At least one serious scientist is arguing that Oumuamua was only the tip of an iceberg of extraterrestrial objects we should expect to see going forward.
  • MARCH: One study says 1-2 days per week is a sweet spot for working from home in terms of a positive economic contribution at the national scale. I think it is about right psychologically for many people too. However, this was a very theoretical simulation, and other studies attempting to measure this at the individual or firm scale have come up with a 20-50% loss in productivity. I think the jury is still out on this one, but I know from personal experience that people need to interact and communicate regularly for teams to be productive, and some people require more supervision than others, and I don’t think technology is a perfect substitute for doing these things in person so far.
  • APRIL: Hydrogen fuel cells may finally be arriving. Not so much in the U.S., where we can’t have nice things.
  • MAY: I learned about Lawrence Kohlberg, who had some ideas on the use of moral dilemmas in education.
  • JUNE: The big U.S. government UFO report was a dud. But what’s interesting about it is that we have all quietly seemed to have accepted that something is going on, even if we have no idea what it is, and this is new.
  • JULY: “Cliodynamics” is an attempt at a structured, evidence-based way to test hypotheses about history.
  • AUGUST: Ectogenesis is an idea for colonizing other planets that involves freezing embryos and putting them on a spaceship along with robots to thaw them out and raise them. Fungi could also be very useful in space, providing food, medicine, and building materials.
  • SEPTEMBER: Philip K. Dick was not only a prolific science fiction author, he also developed a comprehensive theory of religion which could possibly even be the right one. Also, possibly related but not really, if there are aliens out there they might live in creepy colonies or super-organisms like ants or termites.
  • OCTOBER: I thought about how to accelerate scientific progress: “[F]irst a round of automated numerical/computational experiments on a huge number of permutations, then a round of automated physical experiments on a subset of promising alternatives, then rounds of human-guided and/or human-performed experiments on additional subsets until you hone in on a new solution… [C]ommit resources and brains to making additional passes through the dustbin of rejected results periodically…” and finally “educating the next generation of brains now so they are online 20 years from now when you need them to take over.” Easy, right?
  • NOVEMBER: Peter Turchin continues his project to empirically test history. In this article, he says the evidence points to innovation in military technologies being driven by “world population size, connectivity between geographical areas of innovation and adoption, and critical enabling technological advances, such as iron metallurgy and horse riding“. What does not drive innovation? “state-level factors such as polity population, territorial size, or governance sophistication“. As far as the technologies coming down the pike in 2022, one “horizon scan” has identified “satellite megaconstellations, deep sea mining, floating photovoltaics, long-distance wireless energy, and ammonia as a fuel source”.
  • DECEMBER: Time reminded us of all the industries Elon Musk has disrupted so far: human-controlled, internal-combustion-fueled automobiles; spaceflight; infrastructure construction (I don’t know that he has really achieved any paradigm shifts here, but not for lack of trying), “artificial intelligence, neurotechnology, payment systems and cryptocurrency.” I’m not sure I follow a couple of these, but I think they missed satellites.

Continuing Signs of U.S. Relative Decline

Signs of U.S. decline relative to our peer group of advanced nations are all around us. I don’t know that we are in absolute decline, but I think we are now below average among the most advanced countries in the world. We are not investing in the infrastructure needed in a modern economy just to reduce friction and let the economy function. The annual length of electric blackouts in the U.S. (hours) compared to leading peers like Japan (minutes) is just one telling indicator. In March, I looked at the Build Back Better proposal and concluded that it was more like directing a firehose of money at a range of problems than an actual plan, but I hoped at least some of it would happen. My rather low but not zero expectations were met, as some limited funding was provided for “hard infrastructure” and energy/emissions projects, but little or nothing (so far, as I write this) to address our systemic failures in health care, child care, or education. The crazy violence on our streets, both gun-related and motor vehicle-related, is another indicator. Known solutions to all these problems exist and are being implemented to various extents by peer countries. Meanwhile our toxic politics and general ignorance continue to hold us back. Biden really gave it his best shot – but if this is our “once in a generation” attempt, we are headed down a road where we will no longer qualify as a member of the pack of elite countries, let alone its leader.

The Climate Change, Drought, Food, Natural Disaster, Migration and Geopolitical Instability Nexus

2021 was a pretty bad year for storms, fires, floods, and droughts. All these things affect our homes, our infrastructure, our food supply, and our water supply. Drought in particular can trigger mass migration. Mass migration can be a disaster for human rights and human dignity in and of itself, and managing it effectively is difficult even for well-intentioned governments. But an insidious related problem is that migration pressure can tend to fuel right wing populist and racist political movements. We see this happening all over the world, and the situation seems likely to get worse.

Tipping Points and other Really Bad Things We Aren’t Prepared For

We can be thankful that nothing really big and new and bad happened in 2021. My apologies to anyone reading this who lost someone or had a tough year. Of course, plenty of bad things happened to good people, and plenty of bad things happened on a regional or local scale. But while Covid-19 ground on and plenty of local and regional-scale natural disasters and conflicts occurred, there were no new planetary-scale disasters. This is good because humanity has had enough trouble dealing with Covid-19, and another major disaster hitting at the same time could be the one that brings our civilization to the breaking point.

So we have a trend of food insecurity and migration pressure creeping up on us over time, and we are not handling it well even given time to do so. Maybe we can hope that some adjustments will be made there to get the world on a sustainable track. Even if we do that, there are some really bad things that could happen suddenly. Catastrophic war is an obvious one. A truly catastrophic pandemic is another (as opposed to the moderately disastrous pandemic we have just gone through.) Creeping loss of human fertility is one that is not getting much attention, but this seems like an existential risk if it were to cross some threshold where suddenly the global population starts to drop quickly and we can’t do anything about it. Asteroids were one thing I really thought we didn’t have to worry much about on the time scale of any human alive today, but I may have been wrong about that. And finally, the most horrifying risk to me in the list above is the idea of an accelerating, runaway feedback loop of methane release from thawing permafrost or underwater methane hydrates.

We are almost certainly not managing these risks. These risks are probably not 100% avoidable, but since they are existential we should be actively working to minimize the chance of them happening, preparing to respond in real time, and preparing to recover afterward if they happen. Covid-19 was a dress rehearsal for dealing with a big global risk event, and humanity mostly failed to prepare or respond effectively. We are lucky it was one we should be able to recover from as long as we get some time before the next body blow. We not only need to prepare for much, much worse events that could happen, we need to match our preparations to the likelihood of more than one of them happening at the same time or in quick succession.

Technological Progress

Enough doom and gloom. We humans are here, alive, and many of us are physically comfortable and have much more leisure time than our ancestors. Our social, economic, and technological systems seem to be muddling through from day to day for the time being. We have intelligence, science, creativity, and problem solving abilities available to us if we choose to make use of them. Let’s see what’s going on with technology.

Biotechnology: The new mRNA technology accelerated by the pandemic opens up potential cures for a range of diseases. We need an effective biological surveillance system akin to nuclear weapons inspections (which we also need) to make sure it is not misused (oops, doom and gloom trying to creep in, but there are some ideas for this.) We have vaccines on the horizon for diseases that have been plaguing us for decades or longer, like malaria and Lyme disease. Malaria kills more children worldwide, year in and year out, than coronavirus has killed per year at its peak.

Promising energy technologies: Space based solar power may finally be getting closer to reality. Ditto for hydrogen fuel cells in vehicles, although not particularly in the U.S. (I’m not sure this is preferable to electric vehicles for everyday transportation, but it seems like a cleaner alternative to diesel and jet fuel when large amounts of power are needed in trucking, construction, and aviation, for example.)

Other technologies: We are actually using technology to catch fish in more sustainable ways, and to grow fish on farms in more sustainable ways. We are getting better at looking for extraterrestrial objects, and the more we look, the more of them we expect to see (this one is exciting and scary at the same time). We are putting satellites in orbit on an unprecedented scale. We have computers, robots, artificial intelligence of a sort, and approaches to use them to potentially accelerate scientific advancements going forward.

The State of Earth’s Ecosystems

The state and trends of the Earth’s ecosystems continue to be concerning. Climate change continues to churn through the public consciousness and our political systems, and painful as the process is I think our civilization is slowly coming to a consensus that something is happening and something needs to be done about it (decades after we should have been able to do this based on the evidence and knowledge available.) When it comes to our ecosystems, however, I think we are in the very early stages of this process. This is something I would like to focus on in this blog in the coming year. My work and family life are busy, and I have decided to take on an additional challenge of becoming a student again for the first time in the 21st century, but somehow I will persevere. If you are reading this shortly after I write it in January 2022, here’s to good luck and prosperity in the new year!

Richard Branson

Richard Branson is going to space. Which doesn’t particularly interest me. But what I find interesting is how his spaceship works. First, it is strapped to the bottom of a normal (but big) plane which takes off from a normal runway.

Once Unity reaches an altitude approaching 50,000 feet (15,200 meters), it will detach from Eve and ignite its single rocket motor. It will go supersonic within eight seconds and power up to 2,600 miles per hour (4,200 kilometers per hour), or beyond Mach 3.

After 70 seconds the engine will cut out, with the spacecraft coasting to its peak altitude, which for Sunday’s mission will be a height of 55 miles or almost 300,000 feet, according to Virgin Galactic.

MSN

When it is ready to come down, it spreads its wings into a sort of “feather” which sounds like a parachute, drifts back into the atmosphere (which starts at 50 miles according to NASA, but closer to 60 miles according to some international standards), then folds its wings back into airplane mode and returns to the runway as an unpowered glider.

Jeff Bezos’s version takes off as a rocket, apparently. Like I said, I don’t particularly care about the egos of these men, but it does appear that the era of private space flight is upon us.

2020…in space commercialization

One thing that happened in 2020 is some long-term trends in space commercialization started to come to fruition in an obvious way. Axios has a roundup:

  • record (unmanned) “commercial launches”
  • U.S. astronauts traveled to the International Space Station on a privately-owned-but-publicly-funded rocket.
  • A bunch of space-related companies sold public stock

A “trend to watch” for 2021 is “megaconstellations of internet-beaming satellites like Starlink”. Wait, “like Starlink”? So there are others? How much space is really out there? This article says the business model is still unproven, but I say the real reason is that Elon Musk is a Bond villain.

This article is about near-Earth space commercialization, not space exploration or travel. Not covered are the wrinkle-resistant flag that China planted on the moon, a variety of un-manned missions to Mars and other planets/objects in the solar system, and the usual array of stories about physics and possible alien signals/contact.

who’s going to Mars?

Here’s a rundown from The Week:

  • The U.S., China, and UAE are all sending unmanned missions to Mars at the moment.
  • It takes about 7-10 months to get there.
  • There is water on the surface of Mars right now, in the form of polar ice caps. I guess I sort of knew that, but not really. I thought there was evidence that there used to be water (there is, and it’s indisputable) and/or that there might be water underground.
  • “NASA’s timeline calls for a crewed mission to the moon by 2024, a lunar base by 2028, and flights from the moon base to Mars sometime in the 2030s.”
  • Elon Musk says he is planning unmanned and manned missions to Mars.
  • If you go to Mars, you pretty much have to accept that the radiation will shorten your natural life, and it is unlikely you will make it back to Earth.

Solaris

I’ve been revisiting the fantastic descriptions of the alien ocean in Solaris by Stanislaw Lem, and I just want to share one part of one paragraph, which I hope does not constitute a copyright violation. His paragraphs are quite long however.

…if comparisons with Earth really have to be employed – these are formations larger in magnitude than Colorado’s Grand Canyon, modeled in a substance that on the outside has the consistency of jelly and foam (though the foam hardens into vast, brittle garlands, into tracery with immense holes, while some scientists have seen it as “skeletal excrescances”). Within, it turns into an ever firmer substance, like a flexed muscle, but one that quickly, at a depth of fifty feet or so, grows harder than rock, though it retains its elasticity. Extending for several miles between walls that stretch like membranes over a monster’s back and cling to its huge “skeleton” is the actual extensor, a seemingly independent format, like a colossal python that has swallowed an entire mountain chain and is now digesting it in silence, from time to time setting its body in slow, shuddering, fishlike contractions. But this is only what the extensor looks like from above, from the cabin of an aircraft. When you get close enough to it that the walls of the ravine rise hundreds of yards above the plane, the python’s torso turns out to be a moving expanse that stretches all the way to the horizon and is so dizzying it takes on the look of a passively bulging cylinder. The first impression is of a whirl of slick gray-green slime whose layers throw off powerful glints of sunlight; but when the craft hovers right over the surface (at such moments the edges of the ravine in which the extensor is concealed are like heights on either side of a geological depression), it can be seen that the motions are much more complex. They possess their own concentric rotations, darker streams intersect, and at times the outer mantle becomes a mirrored surface reflecting clouds and sky and shot through with loud explosive eruptions of its half-fluid, half-gaseous center. It slowly becomes clear that right below you is the central point of the forces holding up the parted sides that soar high into the sky and are composed of sluggishly crystallizing jelly…

Solaris, Stanislaw Lem

Like I said, that is one part of one paragraph. It goes on like that for a long time. There have been a couple movies, but it really is a case where a few words are worth a thousand pictures, and whatever you picture in your mind is better than anything the most talented movie special effects person could come up with.

April 2020 in Review

Most frightening and/or depressing story:

  • The coronavirus thing just continued to grind on and on, and I say that with all due respect to anyone reading this who has suffered serious health or financial consequences, or even lost someone they care about. After saying I was done posting coronavirus tracking and simulation tools, I continued to post them throughout the month – for example here, here, here, here, and here. After reflecting on all this, what I find most frightening and depressing is that if the U.S. government wasn’t ready for this crisis, and isn’t able to competently manage this crisis, it is not ready for the next crisis or series of crises, which could be worse. It could be any number of things, including another plague, but what I find myself fixating on is a serious food crisis. I find myself thinking back to past crises – We got through two world wars, then managed to avoid getting into a nuclear war to end all wars, then worked hard to secure the loose nuclear weapons floating around. We got past acid rain and closed the ozone hole (at least for awhile). Then I find myself thinking back to Hurricane Katrina – a major regional crisis we knew was coming for decades, and it turned out no government at any level was prepared or able to competently manage the crisis. The unthinkable became thinkable. Then the titans of American finance broke the global financial system. Now we have a much bigger crisis in terms of geography and number of people affected all over the world. The crises may keep escalating, and our competence has clearly suffered a decline. Are we going to learn anything?

Most hopeful story:

  • Well, my posts were 100% doom and gloom this month, possibly for the first time ever! Just to find something positive to be thankful for, it’s been kind of nice being home and watching my garden grow this spring.

Most interesting story, that was not particularly frightening or hopeful, or perhaps was a mixture of both:

  • There’s a comet that might be bright enough to see with the naked eye from North America this month.

Comet ATLAS

And now for something fun and, by definition, not coronavirus related. Not that some people won’t see this as a concurrent sign of the apocalypse. But there is an unusually bright comet called ATLAS out there, and we might be able to see it with the naked eye sometime in April or May.

As to how bright Comet ATLAS will get, that’s anybody’s guess. It might become faintly visible to the naked eye under dark sky conditions by mid- or late April. By mid-May, when it disappears into the bright evening twilight, perhaps it will have brightened to second magnitude — about as bright as Polaris, the North Star.

Space.com

I thought I remembered seeing Halley’s comet in the 1990s, but after reading up on it, I probably remember people talking about Halley’s comet in the 1980s (when I was in elementary school) and then saw either Hyakutake or Hale-Bopp in the 1990s (when I was in college). I live in a brightly lit city now, and am not allowed to leave my house, but back then I lived in Central Pennsylvania and if I drove for 10 minutes in any direction it would get pretty dark.

Anyway, Atlas is supposed to be visible in the North to Northwest sky. I wouldn’t mind learning to read star charts if I ever get the time, but I recently discovered that there are a ton of astronomy apps out there. I’ve been using Sky View, and it’s great but just one of many. You just point your tablet at the sky and it labels whatever is there for you. You can convince yourself it is accurate just by pointing it at the moon. It actually works just fine in the daytime, on a cloudy night, or if you point it down at the ground and want to know what a person looking up at the sky in the Australian outback might be seeing. Space is predictable like that, and GPS works that well on the average device owned by the average Joe. Pretty neat.

And as for the Apocalypse, nobody is suggesting this thing is actually headed anywhere near earth. This article says it will be 273 million miles from the Sun. The Earth is about 90 million miles from the Sun, so that is only three times the distance, but I don’t know if the Earth is on the same side as the comet right now, so it might be more. It’s far and we have plenty of other things to worry about here on our little blue dot.