ATOM Award of the Month, November 2019

It is time for another ATOM AotM.  This month's award has a major overlap with the November 2017 award, where we identified that telescopic power has been computerized, and as a result was rising at 26%/yr.  This itself was a finding from a much older article from all the way back in September 2006, where I first identified that telescopic power was improving at that rate.  

But how do better telescopes improve your life?  Learning about exoplanets and better images of stars are fun, but have no immediate relevance to our individual daily challenges.  If you are not interested in astronomy, why should you care?  Well, there is one area where this advancement has already improved millions and possibly billions of lives : we have now mapped nearly all of the Near Earth Objects (NEOs) that might be large enough to cause a major disaster if any of them strike the Earth.  Remember that this is an object with a mass that may be billions of tons, traveling at about 30 km/sec (image from sciencenews.org), of which there are many thousands that have already orbited the sun over 4 billion times each.  

All of us recall how, in the 1990s, there were a number of films portraying how such a disaster might manifest.  Well, in the 1990s, we had little awareness of which objects were nearby at what time, and so there really was a risk that a large asteroid could hit us with little or no warning.  However, as telescopes improved, 26%/yr (the square root of Moore's Law, since pixel numbers increase as a square of linear dimension shrinkage) got to work on this problem.  Now, as of today, all asteroids larger than 1km are mapped, and almost all of the thousands that are larger than 140m (the size above which it would actually hit the surface, rather than burn up in the atmosphere) are mapped as well (chart from Wikipedia).  We have identified which object might be an impact risk in what year.  In case you are wondering, there is a 370m asteroid that will get very near (but not hit the Earth) in 2036.  Of course, by 2036, we will have mapped everything with far more precision, at this rate of improvement.  In other words, don't worry about an asteroid impact in the near future, as none of significance are anticipated in the next 17 years, and probably not for much longer than that.  Comets are a different matter, as we have not mapped most of them (and cannot, as of yet), but large ones impact too infrequently to worry about.  

Hence, the risk of an impact event, and mitigation thereof, is no longer a technological problem.  It is merely a political one.  Will the governments of the world work to divert asteroids before one hits, or will they only react after one hits in order to prevent the next impact?  These questions are complicated, as this problem is completely borderless.  Why should the United States pay the majority of the expense for a borderless problem, particularly one that has a 71% chance of hitting an ocean?  At any rate, this is another problem that went from deadly to merely one of fiscal prioritization, on account of ATOM progress.  

More interestingly, within this problem is another major business opportunity that we have discussed here in the past.  Asteroid mining is a potential industry that is simultaneous with asteroid diversion, as asteroid pulverization may waste some precious metals that can be captured.  Many asteroids have a much greater proportion of precious metals than the Earth's surface does, since 'precious' metals are heavy and most of the quantity sunk to the center of the Earth while the Earth was forming, while an asteroid with much lower gravity has its precious metals more evenly distributed throughout its structure.  There are already asteroids identified that have hundreds of tons of gold and platinum in them.  Accessing these asteroids will, of course, crush the prices of these metals as traded on Earth (another ATOM effect we have seen elsewhere in other commodities), and may reduce gold to an industrial metal that is used in much the way copper is.  This, of course, may enable new applications that are not cost-effective at the current prices of gold, platinum, palladium, etc.  But that is a topic for another time.  

 

Related :

ATOM AotM, November 2017

SETI and the Singularity

Telescope Power - Yet Another Accelerating Technology