In a Multiverse, What Are the Odds? "Testing the multiverse hypothesis requires measuring whether our universe is statistically typical among the infinite variety of universes. But infinity does a number on statistics." (previously) [more inside]
"Maybe the Big Bang never happened because the universe never began because it has always existed." Scientific American magazine revisits the decade-old idea that we live in a "Rainbow" universe (where different wavelengths of light experience spacetime differently and where the big bang may never have happened) following the publication of new physics research on the subject.
Hi. Here's Stephen Colbert (out of character) and astrophysicist Neil deGrasse Tyson having an 85 minute conversation about science, physics, and the universe.
What does a Higgsless universe mean for science? The Higgs Boson is quite important to the standard model of physics. If it exists, it plays a major role in explaining how particles acquire mass. There’s a distinct possibility that the Higgs Boson may not even exist. Stephen Hawking made a famous bet that the Large Hadron Collider (LHC) wouldn't find it. So far both the LHC and Tevatron, another massive particle accelerators have both searched much of the energy ranges we expected to find the Higgs with no luck. So, then, what does it mean if we don’t find the Higgs at all?
"Zoom from the edge of the universe to the quantum foam of spacetime and learn the scale of things along the way!" [more inside]
Renowned theoretical physicist Nima Arkani-Hamed gave a series of five Messenger lectures on "The Future of Fundamental Physics" at Cornell University two weeks ago. 1 3 4 5 [more inside]
Is the Multiverse Real? Discover takes a look at theories that our universe is one of many. This blogger adds some interesting commentary. via
An Interactive Space Simulator "Smash planets together, introduce rogue stars, and build new worlds from spinning discs of debris. Fire a moon into a planet or destroy everything you've created with a super massive black hole. You can simulate and interact with our solar system: the 8 planets,160+ moons, and hundereds of asteroids, the nearest 1000 stars to our Sun, and our local group of galaxies." [31Mb, Windows only, sorry, but see inside for similar Mac and Linux apps] [more inside]
Imagining the Tenth Dimension (Flash). 10th dimensional physics and string theory don't get any easier than this.
If the universe is a hologram and the healthy human brain a valve of consciousness then where'd this mental infinity come from? Are we simply living the simulacrum? Or does Pi protect us all, forever, infinitely?
So you think the expansion of the universe is accelerating? Think again! (Contains links to full paper in .pdf etc.)