Showing posts with label Asteroids. Show all posts
Showing posts with label Asteroids. Show all posts

April 13, 2013

Colonize and Survive

It was interesting to read in Popular Science (12 April 2013) that the famous physicist and futurist, Stephen Hawking, stated that humans would face extinction on planet Earth within the next 1,000 years. 

Hawking says we need to colonize other planets--and I believe that is sound advice. 

While Mother Earth has an incredible ability to rejuvenate and self-heal, let's face it, the planet cannot sustain us forever in our current state.

According to the United Nations, the world population is expected to hit 9.22 billion by 2075, and life expectancy is expected to rise varying across countries from 66 to 97 by 2100.  

Moreover, according to research institution, Transatlantic Academy (May 2012), over the next 10-20 we are likely to see "accelerating demand for most natural resource commodities...increasingly volatile markets, [and] scarcities are likely to be more common." 

In the absence of major technological breakthroughs, increased social equity, and peaceful coexistence on this planet, we will need to find resources outside of Earth and colonize other planets--this is our future.  

Already, as reported by National Geographic (10 April 2013), the administration has funded NASA to capture an asteroid and set it in orbit around the moon  to not only study and develop capabilities to help protect our planet from a collision, but also to eventually be able to mine asteroids for precious minerals. 

As much as we love Earth--although sometimes we don't show it by being gluttonous with its resources, polluting, destroying the ozone, and generally not following sustainable practices--we need to have a "Plan B" whereby we explore for water, food, land, minerals, and energy elsewhere and be ready to make a move to survive another 6000 years and more. ;-)

(Source Photo: Andy Blumenthal)


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February 16, 2013

Chicken Big And The Asteroids


The story of Chicken Little running around yelling that "The sky is falling" has become the epitome of those who "cry wolf" about the world ending--falsely worrying about and predicting catastrophic events.

However, the reverse can be true as well--where people say, "The sky is not falling," when it really is. This is a "Chicken Big" event--where people are afraid "big time" of admitting the truth and so they hide themselves and others from it. Sort of like saying "What I don't know can't hurt me!"

Yesterday was just such as Chicken Big--hide your head in the sand--moment.


Asteroid DA14 passed just 17,000 miles from the Earth--less than the distance from New York to Sydney! It was 140 foot long and 143,000 tons, and possessed the destructive power 700 times that of the atomic bomb dropped on Hiroshima. According to the Wall Street Journal (13 Feb. 2013) it was able to devastate a region the size of the San Francisco Bay area.


While, thank G-d, this dangerous asteroid missed us, just a few hours earlier, a meteor about 55 feet long and 10,000 tons exploded over the Ural Mountains in Russia, with the destructive power of 33 Hiroshima-size atomic bombs injuring 1,000 people and damaging 4,000 buildings.  


Of course, it is a frightening reminder of what could've happened had asteroid DA14 hit as well. 


The Guardian reported that according to The European Space Agency "No link between the events is thought possible," and the Wall Street Journal (15 Feb. 2013) declared that it "was just a coincidence".


Interestingly, the Journal itself states that a meteor event such as that which exploded over Russia yesterday happens "every 100 years," and even more, the chances of the asteroid that passed very close overhead actually hitting Earth occurs "once every 200 to 1,000 years," with the next close pass over earth not expected again until 2046. Thus, these types of events don't happen exactly every day, do they?  


So what are the chances of these 2 events (one exploding overhead and the other a near miss) occurring simultaneously yesterday--just hours apart!


People need to know--deserve to know the truth about the dangers we face--not to cry wolf--but rather to help us as a society and civilization recognize the genuine dangers we face, so we can adequately take precautions and prepare ourselves. 


Interestingly enough, the WSJ states, "We have the technology to deflect these asteroids" with spacecraft to impact into them and "gravity tractors" to change their trajectory--the one thing we need is "years of advance warning."


Let's acknowledge the meteor explosion yesterday in Russia and be grateful that it wasn't over a heavily populated major urban area, where the effect could've been much worse, and of course the same with the near flyby of the asteroid--and resolve to invest in the monitoring, tracking, and defensive technologies to keep us safe from a future catastrophe where the sky really is falling.


Calling the two cosmic events yesterday a "coincidence" is a Chicken Big event--buck, buck, buck. ;-)


 (Source Photo: here with attribution to Sascha Grant)



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