• The Consolation of Philosophy Scientific American

    Updated: 2012-04-28 23:51:56
    : Subscribe get Selections on Evolution FREE Subscribe Buy This Issue Subscribe to Digital Give a Gift , Get a Free Gift Subscribe News Features News Features Ask the Experts Edit This Extreme Tech Fact or Fiction In-Depth Reports Mind Matters Blogs A Blog Around The Clock Anecdotes from the Archive ScientificAmerican Budding Scientist The SA Incubator The Network Central Scientific American Observations Octopus Chronicles Solar at Home Streams of Consciousness From Our Network Multimedia Interactive Features Video Slide Shows 60-Second Science Podcast 60-Second Mind Podcast 60-Second Earth Podcast 60-Second Space Podcast 60-Second Health Podcast 60-Second Tech Podcast Science Talk Podcast Science Images Education Science in Action Award Bring Science Home 1,000 Scientists in 1,000 Days

  • Dark Matter May Collide With Atoms Inside You More Often Than Thought

    Updated: 2012-04-28 19:00:25
    Invisible dark matter particles may regularly pass through our bodies, and dozens to thousands of these particles may be colliding with atoms inside us every year, according to a new calculation.

  • PhD Comics Explains the Higgs Boson Cosmic Variance Discover Magazine

    Updated: 2012-04-26 21:11:54
    Subscribe Today Renew Give a Gift Archives Customer Service Facebook Twitter Newsletter SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS What Particle Are You PhD Comics Explains the Higgs Boson by Sean Carroll Jorge Cham visits CERN , and comes back with tales of particles and mass . Share April 26th , 2012 8:06 AM in Humor Science 7 comments RSS feed Trackback 7 Responses to PhD Comics Explains the Higgs Boson” 1. Dan Schroeder Says : April 26th , 2012 at 8:57 am In the chemists’ periodic table , particles with similar properties are in the same column with masses increasing downward . Why do particle physicists usually draw their periodic table transposed , so particles with similar properties are in the same

  • The Particle at the End of the Universe by Sean Carroll

    Updated: 2012-04-25 00:16:12
    , The Particle at the End of the Universe Sean Carroll The Particle at the End of the Universe is a popular-level book on the Higgs boson and the Large Hadron Collider , to be published by Dutton in January , 2013. The Book The Author Interactions Contact About the book Particle physics the study of the fundamental ingredients of nature and their interactions is on the verge of changing forever . For better or for worse , we don't yet know . But what happens this year and the next will determine the future of a quest that began over 2,500 years ago with the atomists of ancient . Greece Back in the 1970's , particle physicists put the finishing touches on an elaborate and spectacularly successful theory of nature†s fundamental interactions , unimaginatively dubbed the Standard Model of

  • Survey finds no hint of dark matter near Solar System Nature News Comment

    Updated: 2012-04-21 00:20:52
    nature.com Sitemap Register Login Nature International weekly journal of science Search Go Advanced search Home News Comment Research Careers Jobs Current Issue Archive Audio Video For Authors News Comment News 2012 April Article Nature News Survey finds no hint of dark matter near Solar System Result poses a cosmic dilemma but critics prescribe . caution Ron Cowen 19 April 2012 Through a glass , darkly A survey of the space around the Solar System has found only one-tenth the amount of predicted dark matter , shown here as a blue haze around the spiral Milky . Way Article tools Print Email Rights and Permissions Share bookmark Connotea Facebook Delicious Twitter Digg Friendfeed In the largest survey of its kind to date , astronomers scouring the space around the Solar System for signs of

  • 1204.3924 Kinematical and chemical vertical structure of the Galactic thick disk II A lack of dark m

    Updated: 2012-04-21 00:20:52
    . Cornell University Library We gratefully acknowledge supporting institutions arXiv.org astro-ph arXiv:1204.3924 Search or Article-id Help Advanced search All papers Titles Authors Abstracts Full text Help pages Full-text : links : Download PDF PostScript Other formats Current browse : context astro-ph.GA next new recent 1204 Change to browse : by astro-ph References Citations INSPIRE HEP refers to cited by NASA ADS Bookmark what is this Astrophysics Galaxy Astrophysics : Title Kinematical and chemical vertical structure of the Galactic thick disk II . A lack of dark matter in the solar neighborhood : Authors C . Moni Bidin G . Carraro R . A . Mendez R . Smith Submitted on 17 Apr 2012 : Abstract We estimated the dynamical surface mass density Sigma at the solar position between Z=1.5 and

  • Katherine Freese Home Page

    Updated: 2012-04-21 00:20:51
    Dr . Katherine Freese The Michigan Center For Theoretical Physics HOME research interests publications research group video audio press coverage presentations photos other links HOME PAGE Dr . Katherine Freese , Professor University of Michigan Dr . Freese is the George E . Uhlenbeck Professor of Physics at the University of Michigan , and the Associate Director of the Michigan Center for Theoretical Physics . She works on a wide range of topics in theoretical cosmology and astroparticle physics . She has been working to identify the dark matter and dark energy that permeate the universe as well as to build a successful model for the early universe immediately after the Big Bang . She has shown that most of the mass in galaxies does not consist of ordinary stellar material , and has

  • Puzzles Cosmic Variance Discover Magazine

    Updated: 2012-04-21 00:20:51
    Subscribe Today Renew Give a Gift Archives Customer Service Facebook Twitter Newsletter SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS Jon Stewart Doesn’t Understand How Science Works Even a Little Bit Puzzles by Sean Carroll Science keeps advancing , in fits and starts . It was a good week for intriguing results from . experiments The first bit of news which has been the subject of the most internet buzz , is a new paper by Chilean astronomers C . Moni Bidin , G . Carraro , R . A . Mendez , and R . Smith which claims that there’s no evidence for dark matter in the dynamics of stars near the Sun . If this were true , it would imply something funny going on with the distribution of nearby dark matter , which

  • Puzzles Cosmic Variance Discover Magazine

    Updated: 2012-04-21 00:20:49
    Subscribe Today Renew Give a Gift Archives Customer Service Facebook Twitter Newsletter SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS Jon Stewart Doesn’t Understand How Science Works Even a Little Bit Puzzles by Sean Carroll Science keeps advancing , in fits and starts . It was a good week for intriguing results from . experiments The first bit of news which has been the subject of the most internet buzz , is a new paper by Chilean astronomers C . Moni Bidin , G . Carraro , R . A . Mendez , and R . Smith which claims that there’s no evidence for dark matter in the dynamics of stars near the Sun . If this were true , it would imply something funny going on with the distribution of nearby dark matter , which

  • Comments on: Puzzles!

    Updated: 2012-04-21 00:20:48
    Random samplings from a universe of ideas.

  • Twitter

    Updated: 2012-04-18 13:11:12
    Have an account Sign in New to Twitter Join Today Username or email Password Remember me Sign in Forgot password Already using Twitter via text message : Language English Bahasa Indonesia Bahasa Melayu Dansk Deutsch Español Filipino Italiano Magyar Nederlands Norsk Polski Português Suomi Svenska Türkçe français Русский Ö´×‘Ö°×¨Ö´× ª اردو العربية فارسی हठन्दी ภาษาไทย 日本語 简体中文 繁體中文 한국어 Twitter.com makes heavy use of JavaScript If you cannot enable it in your browser's preferences , you may have a better experience on our mobile site Welcome to . Twitter Find out what’s happening , right now , with the people and organizations you care . about Username or email Password Remember me Forgot password New to Twitter

  • A New View of the Tarantula Nebula

    Updated: 2012-04-17 06:00:00
    A massive star-forming region located about 160,000 light years away.

  • 1003.2419 Born's Rule Is Insufficient in a Large Universe

    Updated: 2012-04-16 19:20:54
    Cornell University Library We gratefully acknowledge supporting institutions arXiv.org hep-th arXiv:1003.2419 Search or Article-id Help Advanced search All papers Titles Authors Abstracts Full text Help pages Full-text : links : Download PDF PostScript Other formats Current browse : context hep-th next new recent 1003 Change to browse : by gr-qc quant-ph References Citations INSPIRE HEP refers to cited by NASA ADS Bookmark what is this High Energy Physics Theory : Title Born 27 s Rule Is Insufficient in a Large Universe : Authors Don N . Page Submitted on 11 Mar 2010 : Abstract Probabilities in quantum theory are traditionally given by Born's rule as the expectation values of projection operators . Here it is shown that Born's rule is insufficient in universes so large that they contain

  • Guest Post Don Page on Quantum Cosmology Cosmic Variance Discover Magazine

    Updated: 2012-04-16 19:20:53
    : Subscribe Today Renew Give a Gift Archives Customer Service Facebook Twitter Newsletter SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS Does Time Exist Scientists : Scamming America Guest Post : Don Page on Quantum Cosmology by Sean Carroll Following the guest post from Tom Banks on challenges to eternal inflation , we’re happy to post a follow-up to this discussion by Don Page Don was a graduate student of Stephen Hawking’s , and is now a professor at the University of Alberta . We have even collaborated in the past , but don’t hold that against . him Don’s reply focuses less on details of eternal inflation and more on the general issue of how we should think about quantum gravity in a cosmological context ,

  • Discovery of the Musket Ball Cluster

    Updated: 2012-04-12 06:00:00
    A merger of galaxy clusters about 5.2 billion light years from Earth.

  • Getting a Full Picture of an Elusive Subject

    Updated: 2012-03-14 05:00:00
    A cluster of galaxies located about 2.3 billion light years from Earth.

  • Dark Matter and Galaxies Part Ways in Collision between Hefty Galaxy Clusters

    Updated: 2012-03-02 05:00:00
    A collision of massive galaxy clusters located about 2.4 billion light years from Earth.

  • NASA'S Chandra Finds Fastest Wind From Stellar-Mass Black Hole

    Updated: 2012-02-21 05:00:00
    A binary system containing a stellar-mass black hole.

  • NASA's Chandra Finds Largest Galaxy Cluster in Early Universe

    Updated: 2012-01-10 05:00:00
    A galaxy cluster located about 7.2 billion light years from Earth.

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