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Strange 'Methuselah' Star Looks Older Than the Universe - Technology & science - Space - Space.com | NBC News
The oldest known star appears to be older than the universe itself, but a new study is helping to clear up this seeming paradox. Previous research had estimated that the Milky Way galaxy's so-called "Methuselah star" is up to 16 billion years old. That's a problem, since most researchers agree that the Big Bang that created the universe occurred about 13.8 billion years ago. Now a team of astronomers has derived a new, less nonsensical age for the Methuselah star, incorporating information about its distance, brightness, composition and structure. "Put all of those ingredients together, and you get an age of 14.5 billion years, with a residual uncertainty that makes the star's age compatible with the age of the universe," study lead author Howard Bond, of Pennsylvania State University and the Space Telescope Science Institute in Baltimore, said in a statement. [ Gallery: The Methuselah Star Revealed ]Interactions NewsWire #07-12 13 February 2012 http://www.interactions.org ******************************************* Source: IPMU Content: Press Release Date Issued: 13 February 2012 ******************************************* Researchers at the University of Tokyo's Institute for the Physics and Mathematics of the Universe (IPMU) and Nagoya University used large-scale computer simulations and recent observational data of gravitational lensing to reveal how dark matter is distributed around galaxies. The new research concludes that galaxies have no definite "edges." Instead galaxies have long outskirts of dark matter that extend to nearby galaxies and the inter-galactic space is not empty but filled with dark matter.
13 February 2012 - IPMU: Missing dark matter located - Inter-galactic space is filled with dark matter
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Posted on March 22, 2011 by Ashley Corbion . Cosmology sometimes seems mysterious: you often hear about dark matter, dark energy , big bang , multiverse , extra dimensions … I think we can undoubtedly say that our Universe is weird… And fascinating. A problem with some of these yet to be explained mysteries is that the models created to describe them are mainly purely theoretical, without being testable. This is particularly true with theories involving extra dimensions (who said string theory?..).
The vanishing dimensions of the Universe