From: Ray Dickenson <r.dickenson.nul> Date: Fri, 22 Feb 2013 16:40:42 -0000 Archived: Sat, 23 Feb 2013 07:52:04 -0500 Subject: The Universe Speaks Hello List, here's the gist of a longish article in 'The Register' science section: http://tinyurl.com/clf34zz ----- The universe speaks: 'It's time to get off your rock!' Long-term civilization on a single planet is impossible By Iain Thomson in San Francisco Posted in Science, 16th February 2013 02:29 GMT The twin visitations from our solar system on Friday - one expected and one not - are yet another signal that mankind really needs to get out and about a bit more if we are to survive as a long-term species. Those with an interest in space had already blocked out Friday on our calendars for the flyby of the asteroid 2012 DA14 a scant 17,150 miles (27,600 kilometers) away. But over a thousand Russians are unexpectedly nursing their wounds from an unexpected airbursting meteor, parts of which now appears to have just missed a major nuclear facility. <snip> More than one basket Given the short warning we got from 2012 DA14, the chances of doing anything to stop an impact are vanishingly small. Sooner or later we're going to get hit by something, and if it's big enough the planet could be uninhabitable by humans for years or even decades. Worse still is the chance of impossible-to-stop impacts like those thought to have caused the creation of the Moon or possibly the asteroid belt. They're highly unlikely to come, but if we're looking to hang around for a few million years or so the odds of living those eons on one planet look short and we'll need a life raft or two, either self-sustaining space colonies or making a go of it on Mars or some of the Solar System's moons. Science fiction writer Robert Heinlein summed it up best: "Once the human race is established on more than one planet and especially, in more than one solar system, there is no way now imaginable to kill off the human race." Ever since we've had a space agency, people have been complaining that it's all a waste of money. But getting into orbit and beyond has paid huge dividends in technological advancement, as well as intellectual inspiration, and it will ultimately be the only thing that offers our species a long-term lifespan." ----- Cheers Ray D Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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