New paper finds that mass of asteroid belts affect habitability of planets

Science Daily reports. (H/T Evolution News via ECM)

Excerpt:

They suggest that the size and location of an asteroid belt, shaped by the evolution of the Sun’s protoplanetary disk and by the gravitational influence of a nearby giant Jupiter-like planet, may determine whether complex life will evolve on an Earth-like planet.

This might sound surprising because asteroids are considered a nuisance due to their potential to impact Earth and trigger mass extinctions. But an emerging view proposes that asteroid collisions with planets may provide a boost to the birth and evolution of complex life.

Asteroids may have delivered water and organic compounds to the early Earth. According to the theory of punctuated equilibrium, occasional asteroid impacts might accelerate the rate of biological evolution by disrupting a planet’s environment to the point where species must try new adaptation strategies.

The astronomers based their conclusion on an analysis of theoretical models and archival observations of extrasolar Jupiter-sized planets and debris disks around young stars. “Our study shows that only a tiny fraction of planetary systems observed to date seem to have giant planets in the right location to produce an asteroid belt of the appropriate size, offering the potential for life on a nearby rocky planet,” said Martin, the study’s lead author. “Our study suggests that our solar system may be rather special.”

There’s a long list of factors that have to be present for a planet to support life – and more keep appearing every day. Here’s another recent one from the journal Nature.

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A special message for people who intend to vote libertarian in Tuesday’s election

Please watch this video:

Former Libertarian VP candidate Wayne Allyn Root agrees that Libertarians should unite behind Romney this election.

Excerpt:

As a former Libertarian presidential contender,  the 2008 Libertarian vice presidential nominee,  the former chairman of the Libertarian National Campaign Committee, and the man called “Mr. Libertarian” by media across this country, you might be surprised to find I’m supporting Republican Mitt Romney for president. Yes, this Las Vegan has gone “all in” for Mitt. Why? Because Mitt Romney is the only sane choice for Libertarians.

It’s simple. Libertarians believe in less government; lower taxes; cutting rules, regulations and mandates to get government out of the way of small business; reining in out-of-control government agencies like the EPA;  auditing the Fed; and balancing the budget. Sound familiar?

So do Mitt Romney and Paul Ryan. Certainly a little less than Libertarians, including me, would like. But, I’ll take incremental progress over no progress. Mitt Romney is a step in the right direction.

Barack Obama is a thousand miles in the wrong direction — a direction that leads to the bankruptcy of our children and grandchildren and the destruction of the American Dream. A vote for anyone but Romney is a vote for Obama and his disastrous road that leads to the end of America (as we know it).

The Obama you’ve seen for the last four years is nothing like the radical man who will be unleashed for the next four. The first Obama term was just a small taste of things to come. Without having to answer to voters again, Obama will be his REAL radical self. Without restraint, Obama will ignore Congress, and govern by Executive Order. These radical Executive Orders from “Obama unleashed” will change America forever.

Don’t believe me? Are you aware Obama issued almost 1,000 executive orders in his first term? That’s more than all other presidents in history combined (and still counting). In a second term Obama will render Congress meaningless.

[…]This election is NOT about Libertarian versus non-Libertarian. This election is about capitalism versus Big Brother socialism. Mitt Romney is far from perfect, but at least he believes in capitalism. At least he won’t denigrate and discourage business owners. Be thankful for little things.

I’m not just a Libertarian. First and foremost, I’m a capitalist evangelist. I’m proud to be a small businessman.

Economic issues are the whole ballgame at this point. We need to get our fiscal house in order first. Without an economy, without jobs, it’s impossible to deal with all our other problems. Mitt understands, as President Calvin Coolidge once said, “The business of America is business.” That’s why electing Mitt Romney is so important.

This election is our LAST STAND to save America. Mitt understands that Obama’s rhetoric, constant threats against business, union favoritism, IRS intimidation, 60,000 new rules and regulations, stimulus to nowhere, never-ending unemployment and food stamps, the added taxes and regulations of ObamaCare, and the attempt to ban oil drilling and regulate the coal industry out of existence, have collectively ground the U.S. economy to a halt. We will not survive four more years of Obama as CEO of this economy.

The time to vote libertarian was in the primary. But this is the general election, and it’s all hands on deck to stop the socialist from winning a second term, where he will have no accountability to the voters whatsoever.

George Will and Michael Barone predict landslide victory for Romney/Ryan

First, George Will: (Headline: George Will predicts 321-217 Romney landslide)

Add Washington Post George Will to the landslide column along with Fox News Channel’s Dick Morris and the Washington Examiner’s Michael Barone.

On this weekend’s broadcast of “This Week with George Stephanopoulos” on ABC, Will revealed his prediction and added a bonus surprise by saying traditional Democratic state Minnesota would go for Romney as well.

“I’m projecting Minnesota to go for Romney,” Will said. “It’s the only state that’s voted democratic in nine consecutive elections, but this year, there’s marriage amendment on the ballot that will bring out the evangelicals and I think could make the difference.”

Second, Michael Barone:

[M]ost voters oppose Obama’s major policies and consider unsatisfactory the very sluggish economic recovery — Friday’s jobs report showed an unemployment uptick.

Also, both national and target state polls show that independents, voters who don’t identify themselves as Democrats or Republicans, break for Romney.

That might not matter if Democrats outnumbered Republicans by 39 to 32 percent, as they did in the 2008 exit poll. But just about every indicator suggests that Republicans are more enthusiastic about voting — and about their candidate — than they were in 2008, and Democrats are less so.

That’s been apparent in early or absentee voting, in which Democrats trail their 2008 numbers in target states Virginia, Ohio, Iowa and Nevada.

[…]Ohio (18). The anti-Romney auto bailout ads have Obama running well enough among blue-collar voters for him to lead most polls. But many polls anticipate a more Democratic electorate than in 2008. Early voting tells another story, and so does the registration decline in Cleveland’s Cuyahoga County. In 2004, intensity among rural, small -town and evangelical voters, undetected by political reporters who don’t mix in such circles, produced a narrow Bush victory. I see that happening again. Romney.

[…]Bottom line: Romney 315, Obama 223. That sounds high for Romney. But he could drop Pennsylvania and Wisconsin and still win the election. Fundamentals.

Barone’s article breaks it down by state, which is good reading. He gives Romney Ohio and Pennsylvania.

Both Barone and Will are moderates who are not known for making wild speculative predictions.

I do think that if you are in a swing state like Ohio, Pennsylvania, Michigan, Minnesota, Virginia, Florida, North Carolina, New Hampshire, Iowa, Wisconsin, Nevada or Colorado that you should definitely get out there and vote for Romney/Ryan. The latest poll in Pennsylvania shows a tie (Obama won that by 11 points in 2008). The latest poll in Michigan shows Romney ahead by 1 point (Obama won that by 16 points in 2008).

At this point, I am reiterating my 52-47 popular vote prediction for Romney. My electoral college prediction is 295-243 for Romney (similar to Barone’s but Obama wins Pennsylvania (20)).

The more of a landslide this is, the more of a mandate that Ryan will have for his economic plan. I want to get back to the place where I don’t have to worry about my job and my portfolio as soon as possible. Please get out there and vote for Romney/Ryan, and tell everyone you know to do the same. I am sick and tired of this feeling of doom that has been hanging over me and my aspirations for my life over the last four years.

UPDATE: Jimmy Pethokoukis says 301-237.