Mineral Wells Index, Mineral Wells, TX

Community News Network

July 18, 2013

Origin of gold found in rare neutron-star collisions

(Continued)

And these explosions make a lot of it — about 20 Earth-masses of gold in the June event, according to a back-of-the-envelope calculation by Daniel Kasen, a University of California at Berkeley astrophysicist. Kasen said that comes out to about 100 trillion oil tankers of gold.

"You need a lot of neutrons to throw at some seed nucleus to build it up to something heavy like gold or lead or platinum," Kasen said. "I'm partial to the name 'blingnova' to describe this kind of event, since what we are seeing is basically an ostentatious glimmering of riches."

If platinum is your thing, then rejoice: These collisions create seven times as much platinum as gold. Berger said the neutron-star collisions produce essentially everything up and down the periodic table.

There's still a lot that must be done with those gold atoms before they wind up on someone's front tooth. The gold is basically dust in the wind, atomized, until it winds up in a cloud of material that can coalesce, through the force of gravity, into a solar system of planets with a star at the center.

Then the gold atoms have to find one another and become concentrated. Over a billion years or more, the planet's geological processes will concentrate elements such as gold so that it will form veins and nuggets. Gold is chemically inert and doesn't want to bond with other elements.

"It's a process of distillation. That's what planets do," said Robert Hazen, a mineralogist at the Carnegie Institution of Washington. Gold is rare on Earth — about one part per billion in the Earth's crust, Hazen said.

Most of Earth's gold is trapped in the planet's core, he said. And, he added, there's a long-standing conjecture that at the very center of the Earth is a small core that's pure gold.

So, does Earth have a heart of gold? They haven't found a way to check on that — yet.

Text Only
Community News Network
  • Why a see-through mouse is a big deal for scientists

    A group of Caltech researchers announced in Cell Thursday their success in making an entire organism transparent. Unfortunately, this isn't any kind of "Invisible Man" scenario: The organism in question is a mouse, and the mouse in question is quite dead.

    July 31, 2014

  • Screen Shot 2014-07-31 at 2.12.55 PM.png VIDEO: Five-year-old doesn't want her brother to grow up

    Sadie, an adorable 5-year-old from Phoenix, wants her brother to stay young forever, so much so that her emotional reaction to the thought of him getting older has drawn more than 10 million views on YouTube.

    July 31, 2014 1 Photo

  • lockport-police.jpg Police department turns to Facebook for guidance on use of 'negro'

    What seems to be a data entry mistake by a small town police department in western New York has turned into a social media firestorm centered around the word "negro" and whether it's acceptable to use in modern society.

    July 31, 2014 3 Photos

  • The virtues of lying

    Two computational scientists set out recently to simulate the effects of lying in a virtual human population. Their results, published in the Proceedings of the Royal Society B, show that lying is essential for the growth of a cohesive social network.

    July 31, 2014

  • Survey results in legislation to battle sexual assault on campus

    Missouri U.S. Sen. Claire McCaskill joined a bipartisan group of senators Wednesday to announce legislation that aims to reduce the number of sexual assaults on college campuses.

    July 30, 2014

  • An alarming threat to airlines that no one's talking about

    It's been an abysmal year for the flying public. Planes have crashed in bad weather, disappeared over the Indian Ocean and tragically crossed paths with anti-aircraft missiles over Ukraine.

    July 30, 2014

  • Sharknado.jpg Sharknado 2 set to attack viewers tonight

    In the face of another "Sharknado" TV movie (the even-more-inane "Sharknado 2: The Second One," premiering Wednesday night on Syfy), there isn't much for a critic to say except to echo what the characters themselves so frequently scream when confronted by a great white shark spinning toward them in a funnel cloud:
    "LOOK OUT!!"

    July 30, 2014 1 Photo

  • Can black women have it all?

    In a powerful new essay for the National Journal, my friend Michel Martin makes a compelling case for why we need to continue the having-it-all conversation.

    July 29, 2014

  • How spy agencies keep their 'toys' from law enforcement

    A little over a decade ago, federal prosecutors used keystroke logging software to steal the encryption password of an alleged New Jersey mobster, Nicodemo Scarfo Jr., so they could get evidence from his computer to be used at his trial.

    July 25, 2014

  • 072214 Diamond Llama 1.jpg Llama on the loose corralled in Missouri town

    A llama on the lam cruised Main Street Tuesday before it mistook a resident’s fenced backyard for a place to grab a meal and freshen up.

    July 22, 2014 2 Photos

Featured Ads
Poll

Would you be in favor of or opposed to housing at the closed CCA facility at Wolters Industrial Park some of the unaccompanied children who have crossed illegally into the U.S. and Texas?

In favor
Opposed
Not sure/undecided
Don't care
     View Results
Mineral Wells Index


Click on a photo to visit our SmugMug page

Front page
Weather Underground Radar
Twitter Updates
Follow us on twitter
AP Video
House Leaders Trade Blame for Inaction Malaysian PM: Stop Fighting in Ukraine Cantor Warns of Instability, Terror in Farewell Ravens' Ray Rice: 'I Made a Huge Mistake' Florida Panther Rebound Upsets Ranchers Small Plane Crash in San Diego Parking Lot Busy Franco's Not Afraid of Overexposure Fighting Blocks Access to Ukraine Crash Site Dangerous Bacteria Kills One in Florida Workers Dig for Survivors After India Landslide Texas Scientists Study Ebola Virus Smartphone Powered Paper Plane Debuts at Airshow Southern Accent Reduction Class Cancelled in TN Raw: Deadly Landslide Hits Indian Village Obama Chides House GOP for Pursuing Lawsuit New Bill Aims to Curb Sexual Assault on Campus Russia Counts Cost of New US, EU Sanctions 3Doodler Bring 3-D Printing to Your Hand Six PA Cops Indicted for Robbing Drug Dealers Britain Testing Driverless Cars on Roadways
Must Read
Seasonal Content
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.
Stocks
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide