Keyword: universe

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  • Alien Earths — 2 billion of them are out there

    03/22/2011 3:29:59 PM PDT · by OldDeckHand · 57 replies
    MSNBC/Space.com ^ | 03/22/2011 | Charles Q. Choi
    That's scientists' latest estimate for our galaxy alone, based on Kepler data Roughly one out of every 37 to one out of every 70 sunlike stars in the sky might harbor an alien Earth, a new study reveals. These findings hint that billions of Earthlike planets might exist in our galaxy, researchers added. These new calculations are based on data from the Kepler space telescope, which in February wowed the globe by revealing more than 1,200 possible alien worlds, including 68 potentially Earth-size planets. The spacecraft does so by looking for the dimming that occurs when a world transits or...
  • Once Upon a Time, the Universe Was Really Weird

    03/21/2011 12:42:01 PM PDT · by LibWhacker · 29 replies
    Discovery.com ^ | 3/21/11 | Ian O'Neill
    Today, looking out across a seemingly boundless cosmos filled with an unimaginable variety of exotic objects, it's easy to forget that the Universe we currently admire is the product of a violent event that occurred 13.75 billion years ago. As we know, the leading theory for universal birth is the Big Bang, where everything came from nothing, in a single energetic burst of inexplicable creation. So, if we turn back the clock back 13.75 billion years, what would we see? My instinct would be to say "energy, the Universe was filled with pure, violent energy," but according to some mind-bending...
  • Are We One of Many Universes? MIT Physicist Says "Yes"

    02/19/2011 1:59:12 AM PST · by LibWhacker · 80 replies
    Daily Galaxy ^ | 2/18/11 | Casey Kazan
    Modern cosmology theory holds that our universe may be just one in a vast collection of universes known as the multiverse. MIT physicist Alan Guth has suggested that new universes (known as “pocket universes”) are constantly being created, but they cannot be seen from our universe. In this view, “nature gets a lot of tries — the universe is an experiment that’s repeated over and over again, each time with slightly different physical laws, or even vastly different physical laws,” says Jaffe. Some of these universes would collapse instants after forming; in others, the forces between particles would be so...
  • Universe Could be 250 Times Bigger Than What is Observable

    02/10/2011 1:21:07 AM PST · by LibWhacker · 56 replies
    Universe Today ^ | 2/8/11 | Vanessa D'Amico
    Our Universe is an enormous place; that’s no secret. What is up for discussion, however, is just how enormous it is. And new research suggests it’s a whopper – over 250 times the size of our observable universe. Currently, cosmologists believe the Universe takes one of three possible shapes: It is flat, like a Euclidean plane, and spatially infinite.It is open, or curved like a saddle, and spatially infinite.It is closed, or curved like a sphere, and spatially finite. While most current data favors a flat universe, cosmologists have yet to come to a consensus. In a paper recently submitted...
  • Alien life deemed impossible by analysis of 500 planets

    01/23/2011 9:38:58 AM PST · by Cincinatus' Wife · 203 replies · 1+ views
    The Daily Telegraph ^ | January 23, 2011 | Heidi Blake
    Howard Smith, a senior astrophysicist at Harvard, made the claim that we are alone in the universe after an analysis of the 500 planets discovered so far showed all were hostile to life. Dr Smith said the extreme conditions found so far on planets discovered outside out Solar System are likely to be the norm, and that the hospitable conditions on Earth could be unique. “We have found that most other planets and solar systems are wildly different from our own. They are very hostile to life as we know it,” he said. He pointed to stars such as HD10180,...
  • Scale of the Universe

    12/21/2010 12:25:52 PM PST · by CharlieOK1 · 11 replies
    PrimaxStudio ^ | 2010 | Cary Huang
    Enjoy. I found this by reading down to the bottom of Greg Easterbrook's Tuesday Morning Quarterback column on ESPN.comClick on the source link then click play. Then push the blue square over to the left. Slowly drag to the right and let your mind take it all in. Try not to fall into a thought-induced catatonic state, especially if you are at work.
  • Best Art in the Universe

    12/18/2010 7:14:46 PM PST · by Beowulf9 · 24 replies · 1+ views
    AOL News ^ | December 15 2010 | Ben Muessig
    Best Art in the Universe? Hubble Space Telescope's Amazing Pics From 2010 (Dec. 15) -- You might think that taking highly detailed photographs of the darkest corners of the universe would be a purely scientific job. Turns out, there's an art to it. For the past 20 years, the Hubble Space Telescope has been orbiting the planet and wowing earthlings with breathtaking images of outer space, from jaw-dropping pictures of clusters of newborn stars to fantastic photos of colliding galaxies. But it's not just Hubble's cutting-edge optics that are responsible for these stunning photographs. Behind each image is the hard...
  • No evidence of time before Big Bang

    12/12/2010 8:51:25 AM PST · by LibWhacker · 46 replies · 1+ views
    Nature ^ | 12/10/10 | Edwin Cartlidge
    Latest research deflates the idea that the Universe cycles for eternity.Our view of the early Universe may be full of mysterious circles — and even triangles — but that doesn't mean we're seeing evidence of events that took place before the Big Bang. So says a trio of papers taking aim at a recent claim that concentric rings of uniform temperature within the cosmic microwave background — the radiation left over from the Big Bang — might, in fact, be the signatures of black holes colliding in a previous cosmic 'aeon' that existed before our Universe.
  • 300 Sextillion Stars in Universe, New Study Suggests

    12/01/2010 6:39:26 PM PST · by Dallas59 · 40 replies · 1+ views
    CBC ^ | 12/1/2010 | CBC
    The night sky may be a lot starrier than we thought. A study suggests the universe could have triple the number of stars scientists previously calculated. The new estimate is 300,000,000,000,000,000,000,000. That's 300 sextillion. The study questions a key assumption that astronomers often use: that most galaxies have the same properties as our Milky Way. And that's creating a bit of a stink among astronomers who want a more orderly cosmos.
  • Have we found the universe that existed before the Big Bang?

    11/20/2010 10:05:12 PM PST · by LibWhacker · 136 replies · 1+ views
    io9 ^ | 11/19/10
    Have we found the universe that existed before the Big Bang? The current cosmological consensus is that the universe began 13.7 billion years ago with the Big Bang. But a legendary physicist says he's found the first evidence of an eternal, cyclic cosmos. The Big Bang model holds that everything that now comprises the universe was once concentrated in a single point of near-infinite density. Before this singularity exploded and the universe began, there was absolutely nothing - indeed, it's not clear whether one can even use the term "before" in reference to a pre-Big-Bang cosmos, as time itself may...
  • Fermilab will measure smallest details of space time and test if the universe is a hologram in 2011

    10/26/2010 7:41:26 AM PDT · by Arec Barrwin · 52 replies
    Next Big Future ^ | October 27, 2010 | Next Big Future
    If you "lived inside" a hologram, you could tell by measuring the blurring. Fermilab is building a interferometer to test space time for holographic blurring. Possible consequence of holography Hypothesis: observable correlations are encoded on light sheets and limited by information capacity of a Planck wavelength carrier (“Planck information flux” limit) Predicts uncertainty in position at Planck diffraction scale
  • Scale of the Universe

    10/11/2010 8:17:30 AM PDT · by Natufian · 45 replies
    Primaxstudio ^ | Cary Huang
    An attempt to show the scale of things from the tiniest to the galactic. Wow.
  • After Big Bang Came Moment of Pure Chaos, Study Finds (order eventually came out of chaos?)

    10/05/2010 10:58:20 AM PDT · by WebFocus · 82 replies · 1+ views
    Space.com ^ | 10/05/2010 | Clara Moskowitz
    <p>The universe was in chaos after the Big Bang kick-started the cosmos, a new study suggests.</p> <p>While one might expect the explosion that began the universe to wreak some havoc, scientists mean something very specific when they refer to chaos. In a chaotic system, small changes can cause large-scale effects. A commonly cited example is the "butterfly effect" — the idea that a butterfly beating its wing in Brazil can bring about a tornado in Texas.</p>
  • Much Ado About “Nothing”: Stephen Hawking and the Self-Creating Universe

    09/12/2010 7:43:20 AM PDT · by SeekAndFind · 33 replies
    First Things ^ | 09/12/2010 | Stephen Barr
    Has physics done away with God? A newly release book by Stephen Hawking and Leonard Mlodinow says, “Yes.” What is a Jewish or Christian believer to make of this? Is the Creator now out of a job? The short answer is (unsurprisingly) no: the ideas propounded in Hawking’s book constitute no threat whatever to the Jewish and Christian doctrine of Creation. The idea that Hawking is now touting is not new—in fact, within the fast-moving world of modern physics it is fairly old. My first introduction to it was reading a very elegant theoretical paper entitled “Creation of Universes from...
  • Angels or Demons? Will CERN's LHC Experiments Point to the Existence of Another Universe?

    09/12/2010 6:57:57 AM PDT · by LibWhacker · 17 replies
    Daily Galaxy ^ | 9/11/10 | Casey Kazan
    Could the elusive Higgs boson finally be in sight? Earlier this summer, physicist Tommaso Dorigo of the University of Padua wrote about talk of a tentative hint of the Higgs at the Tevatron, a particle accelerator at the Fermi National Accelerator Laboratory in Batavia, Illinois. "It reached my ear, from two different, possibly independent sources, that an experiment at the Tevatron is about to release some evidence of a light Higgs boson signal. Some say a three-sigma effect, others do not make explicit claims but talk of a unexpected result," wrote Dorigo. The blog post was low on detail but...
  • As a scientist I'm certain Stephen Hawking is wrong. You can't explain the universe without God

    09/07/2010 7:22:42 PM PDT · by SeekAndFind · 31 replies
    Daily Mail ^ | 09/07/2010 | Prof. John Lennox
    There's no denying that Stephen Hawking is intellectually bold as well as physically heroic. And in his latest book, the renowned physicist mounts an audacious challenge to the traditional religious belief in the divine creation of the universe. According to Hawking, the laws of physics, not the will of God, provide the real explanation as to how life on Earth came into being. The Big Bang, he argues, was the inevitable consequence of these laws 'because there is a law such as gravity, the universe can and will create itself from nothing.' Unfortunately, while Hawking's argument is being hailed as...
  • Is Intelligence By Association Possible?

    09/04/2010 12:19:19 PM PDT · by The Looking Spoon · 28 replies
    The Looking Spoon ^ | 9-3-10 | Jared H. McAndersen
    God did not create the universe, world-famous physicist Stephen Hawking argues in a new book that aims to banish a divine creator from physics.Hawking says in his book "The Grand Design" that, given the existence of gravity, "the universe can and will create itself from nothing," according to an excerpt published Thursday in The Times of London."Spontaneous creation is the reason why there is something rather than nothing, why the universe exists, why we exist," he writes in the excerpt."It is not necessary to invoke God to light the blue touch paper [fuse] and set the universe going," he...
  • Ye cannae change the laws of physics (or can you?)

    09/02/2010 7:16:48 PM PDT · by Tolerance Sucks Rocks · 39 replies · 1+ views
    The Economist ^ | September 2, 2010 | The Economist
    RICHARD FEYNMAN, Nobel laureate and physicist extraordinaire, called it a “magic number” and its value “one of the greatest damn mysteries of physics”. The number he was referring to, which goes by the symbol alpha and the rather more long-winded name of the fine-structure constant, is magic indeed. If it were a mere 4% bigger or smaller than it is, stars would not be able to sustain the nuclear reactions that synthesise carbon and oxygen atoms. One consequence would be that squishy, carbon-based life would not exist. Why alpha takes on the precise value it does, so delicately fine-tuned for...
  • Fate of Universe revealed by galactic lens

    08/19/2010 3:49:20 PM PDT · by NormsRevenge · 36 replies
    BBC News ^ | 8/19/10 | Howard Falcon-Lang
    A "galactic lens" has revealed that the Universe will probably expand forever. Astronomers used the way that light from distant stars was distorted by a huge galactic cluster known as Abell 1689 to work out the amount of dark energy in the cosmos. Dark energy is a mysterious force that speeds up the expansion of the Universe. Understanding the distribution of this force revealed that the likely fate of the Universe was to keep on expanding. It will eventually become a cold, dead wasteland, researchers say. The study, conducted by an international team led by Professor Eric Jullo of Nasa's...
  • Photo gallery: Miss Universe contestants

    08/16/2010 2:15:25 PM PDT · by SandRat · 59 replies
    Arizona Daily Star ^ | Darrren Decker
    In this publicity image released by Miss Universe Organization, the 2010 Miss Universe Contestants pose along with last year's winner for the official group photo at the Mandalay Bay Hotel and Casino in Las Vegas, Nevada on Thursday, Aug. 12, 2010. The Miss Universe 2010 competition that will air live from Mandalay Bay on the NBC Television Network at 9 PM ET, Aug. 23. (AP Photo/Miss Universe Organization LP, LLLP)