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Jonathan Tobin: Defending the Right to a Jewish State

Heather Hale: Compliment your kids without giving them big heads

Megan Shauri: 10 ways you are ruining your own happiness

Carolyn Bigda: 8 Best Dividend Stocks for 2015

Kiplinger's Personal Finance editors: 7 Things You Didn't Know About Paying Off Student Loans

Samantha Olson: The Crucial Mistake 55% Of Parents Are Making At Their Baby's Bedtime

Densie Well, Ph.D., R.D. Open your eyes to yellow vegetables

The Kosher Gourmet by Megan Gordon With its colorful cache of purples and oranges and reds, COLLARD GREEN SLAW is a marvelous mood booster --- not to mention just downright delish
April 18, 2014

Rabbi Yonason Goldson: Clarifying one of the greatest philosophical conundrums in theology

Caroline B. Glick: The disappearance of US will

Megan Wallgren: 10 things I've learned from my teenagers

Lizette Borreli: Green Tea Boosts Brain Power, May Help Treat Dementia

John Ericson: Trying hard to be 'positive' but never succeeding? Blame Your Brain

The Kosher Gourmet by Julie Rothman Almondy, flourless torta del re (Italian king's cake), has royal roots, is simple to make, . . . but devour it because it's simply delicious

April 14, 2014

Rabbi Dr Naftali Brawer: Passover frees us from the tyranny of time

Greg Crosby: Passing Over Religion

Eric Schulzke: First degree: How America really recovered from a murder epidemic

Georgia Lee: When love is not enough: Teaching your kids about the realities of adult relationships

Cameron Huddleston: Freebies for Your Lawn and Garden

Gordon Pape: How you can tell if your financial adviser is setting you up for potential ruin

Dana Dovey: Up to 500,000 people die each year from hepatitis C-related liver disease. New Treatment Has Over 90% Success Rate

Justin Caba: Eating Watermelon Can Help Control High Blood Pressure

The Kosher Gourmet by Joshua E. London and Lou Marmon Don't dare pass over these Pesach picks for Manischewitz!

April 11, 2014

Rabbi Hillel Goldberg: Silence is much more than golden

Caroline B. Glick: Forgetting freedom at Passover

Susan Swann: How to value a child for who he is, not just what he does

Cameron Huddleston: 7 Financial Tasks You Should Tackle Right Now

Sandra Block and Lisa Gerstner: How to Profit From Your Passion

Susan Scutti: A Simple Blood Test Might Soon Diagnose Cancer

Chris Weller: Have A Slow Metabolism? Let Science Speed It Up For You

The Kosher Gourmet by Diane Rossen Worthington Whitefish Terrine: A French take on gefilte fish

April 9, 2014

Jonathan Tobin: Why Did Kerry Lie About Israeli Blame?

Samuel G. Freedman: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Jessica Ivins: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Kim Giles: Asking for help is not weakness

Kathy Kristof and Barbara Hoch Marcus: 7 Great Growth Israeli Stocks

Matthew Mientka: How Beans, Peas, And Chickpeas Cleanse Bad Cholesterol and Lowers Risk of Heart Disease

Sabrina Bachai: 5 At-Home Treatments For Headaches

The Kosher Gourmet by Daniel Neman Have yourself a matzo ball: The secrets bubby never told you and recipes she could have never imagined

April 8, 2014

Lori Nawyn: At Your Wit's End and Back: Finding Peace

Susan B. Garland and Rachel L. Sheedy: Strategies Married Couples Can Use to Boost Benefits

David Muhlbaum: Smart Tax Deductions Non-Itemizers Can Claim

Jill Weisenberger, M.S., R.D.N., C.D.E : Before You Lose Your Mental Edge

Dana Dovey: Coffee Drinkers Rejoice! Your Cup Of Joe Can Prevent Death From Liver Disease

Chris Weller: Electric 'Thinking Cap' Puts Your Brain Power Into High Gear

The Kosher Gourmet by Marlene Parrish A gift of hazelnuts keeps giving --- for a variety of nutty recipes: Entree, side, soup, dessert

April 4, 2014

Rabbi David Gutterman: The Word for Nothing Means Everything

Charles Krauthammer: Kerry's folly, Chapter 3

Amy Peterson: A life of love: How to build lasting relationships with your children

John Ericson: Older Women: Save Your Heart, Prevent Stroke Don't Drink Diet

John Ericson: Why 50 million Americans will still have spring allergies after taking meds

Cameron Huddleston: Best and Worst Buys of April 2014

Stacy Rapacon: Great Mutual Funds for Young Investors

Sarah Boesveld: Teacher keeps promise to mail thousands of former students letters written by their past selves

The Kosher Gourmet by Sharon Thompson Anyone can make a salad, you say. But can they make a great salad? (SECRETS, TESTED TECHNIQUES + 4 RECIPES, INCLUDING DRESSINGS)

April 2, 2014

Paul Greenberg: Death and joy in the spring

Dan Barry: Should South Carolina Jews be forced to maintain this chimney built by Germans serving the Nazis?

Mayra Bitsko: Save me! An alien took over my child's personality

Frank Clayton: Get happy: 20 scientifically proven happiness activities

Susan Scutti: It's Genetic! Obesity and the 'Carb Breakdown' Gene

Lecia Bushak: Why Hand Sanitizer May Actually Harm Your Health

Stacy Rapacon: Great Funds You Can Own for $500 or Less

Cameron Huddleston: 7 Ways to Save on Home Decor

The Kosher Gourmet by Steve Petusevsky Exploring ingredients as edible-stuffed containers (TWO RECIPES + TIPS & TECHINQUES)

Jewish World Review Dec. 2, 2010 / 25 Kislev, 5771

New estimate of universe's stars is 3 times higher

By Amina Khan




An Earth-like planet — and other forms of life — are no longer an impossibility, believe some scientists.

Was the creation of our world, then, a mere accident?

http://www.JewishWorldReview.com | (MCT) Here's a finding that may make some stargazers do a double-take through their telescopes: There may be three times as many stars in the universe as we thought. Fixing this astronomical miscalculation may force some researchers to reconsider what far-off galaxies really look like and how the stars within them came to be.

"It has terrifying implications for a lot of the astronomy we do," said Caltech astronomer Richard Ellis, who was not involved in the work.

Previous star counts relied on the assumption that the larger universe looks much like our own galaxy. But authors of a report published Wednesday in the journal Nature say that there are many more red dwarfs — small, dim stars that can't be picked out individually when very far off — in certain other galaxies than in the Milky Way.

The new census, based on analysis of the light signature of the galaxies using instruments at the Keck Observatory in Hawaii, pushes the total number of stars in the universe to 300 sextillion (that's 100 billion squared, multiplied by 30).

Red dwarfs are often a mere 10 percent to 20 percent of the mass of the sun, and hundreds of times dimmer. That makes them so faint as to be undetectable at great distances. To make up for what they couldn't see, astronomers for decades have assumed that the proportion of red dwarfs in other galaxies would be similar to the ratio known to exist in our own, said Yale University astronomer Pieter van Dokkum, the study's lead author.

Armed with recent advances that enabled them to better detect the faint signals of dim, low-mass stars, van Dokkum and co-worker Charlie Conroy of the Harvard-Smithsonian Center for Astrophysics looked at the radiation emanating from eight elliptical galaxies between 50 million and 300 million light years from Earth. These types of galaxies have a bulging shape and typically contain relatively old stars — very different from spiral galaxies like the Milky Way, which have stars arrayed in flat, rotating disks and armlike projections where new stars are growing.


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If any galaxy would look different from ours on the inside, it would be these elliptical types, van Dokkum and Conroy figured.

The scientists looked at the light given off by these galaxies to determine what chemicals were present, and in what amounts — revealing what kinds of stars they came from. They found strong signs of sodium and iron, which are typically found in feeble, low-mass stars. They calculated that the strength of the sodium and iron signatures was enough to raise the red dwarf estimate within these galaxies by a factor of nine.

If that calculation holds for all elliptical galaxies — which constitute one-third of all known galaxies — that would triple the star census of the universe.

Ellis said the results are not yet ironclad, in part because this paper relies on an assumption of its own: that red dwarfs in other galaxies have the same proportion of sodium, iron and other chemicals as red dwarfs in our own.

Should future studies confirm the findings, astronomers may need to rejigger all kinds of basic numbers.

Among them: The young universe may have had different proportions of stars than it does today. Stars and galaxies may grow differently than scientists believed. There may be slightly less dark matter in the centers of these galaxies than had been predicted.

And with so many more stars available, the probability that an Earth-like planet — and other forms of life — exist in distant parts of space is much higher, too.

"It's a bit like going to another country and realizing the rules and customs you're used to in your own country no longer apply," Ellis said.


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© 2010 Los Angeles Times; Distributed by McClatchy-Tribune Information Services.