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DaylightMap Physics 20b: Introduction to Cosmology - Spring 2010 - Download free content from UC Irvine More Classic Pop Icons In A Different Light (PICS 05 Oct These images were gathered from all over the internets but it has come to our attention that a few of them can be purchased as shirts from various sites. If you’re looking to find some terrific t-shirts (beyond just what you may see here as well) visit Threadless , Shirt Woot! , Tee Fury and Glennz Tees . Check out Part 1 in this series here , Part 2 here , Part 3 here and Part 4 here . Mysterious New 'Dark Flow' Discovered in Space As if the mysteries of dark matter and dark energy weren't vexing enough, another baffling cosmic puzzle has been discovered. Patches of matter in the universe seem to be moving at very high speeds and in a uniform direction that can't be explained by any of the known gravitational forces in the observable universe. Astronomers are calling the phenomenon "dark flow." The stuff that's pulling this matter must be outside the observable universe, researchers conclude. When scientists talk about the observable universe, they don't just mean as far out as the eye, or even the most powerful telescope, can see. In fact there's a fundamental limit to how much of the universe we could ever observe, no matter how advanced our visual instruments. Mysterious motions Scientists discovered the flow by studying some of the largest structures in the cosmos: giant clusters of galaxies. Inflationary bubble In these regions, space-time might be very different, and likely doesn? Surprising find

3D Solar System LIVE REAL TIME SATELLITE AND SPACE SHUTTLE TRACKING AND PREDICTIONS sidewalk chalk guy sidewalk chalk guy «« back to gprime.net all material copyrighted by its original creator | Charlie's Diary: The High Frontier, Redux (I am currently suffering from a bad cold, and it's screwing with my ability to think straight. So rather than risk damaging my real work in progress, I decided to tidy up some thoughts I've been kicking around for a while, and bolt together this essay. Which will, I hope, begin to highlight the problems I face in trying to write believable science fiction about space colonization.) I write SF for a living. I'm going to take it as read that the idea of space colonization isn't unfamiliar; domed cities on Mars, orbiting cylindrical space habitats a la J. And I don't want to spend much time talking about the unspoken ideological underpinnings of the urge to space colonization, other than to point out that they're there, that the case for space colonization isn't usually presented as an economic enterprise so much as a quasi-religious one. The solar system is conveniently small. Now for the first scale shock: using our handy metaphor the Kuiper belt is perhaps a metre in diameter.

Radio telescopes capture best-ever snapshot of black hole jets An international team, including NASA-funded researchers, using radio telescopes located throughout the Southern Hemisphere has produced the most detailed image of particle jets erupting from a supermassive black hole in a nearby galaxy. "These jets arise as infalling matter approaches the black hole, but we don't yet know the details of how they form and maintain themselves," said Cornelia Mueller, the study's lead author and a doctoral student at the University of Erlangen-Nuremberg in Germany. The new image shows a region less than 4.2 light-years across -- less than the distance between our sun and the nearest star. Mueller and her team targeted Centaurus A (Cen A), a nearby galaxy with a supermassive black hole weighing 55 million times the sun's mass. Seen in radio waves, Cen A is one of the biggest and brightest objects in the sky, nearly 20 times the apparent size of a full moon. (Photo Credit: ESO/WFI (visible); MPIfR/ESO/APEX/A.Weiss et al.