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Your Age On Other Worlds
The Days (And Years) Of Our Lives Looking at the numbers above, you'll immediately notice that you are different ages on the different planets. This brings up the question of how we define the time intervals we measure. What is a day?NOVA | The Elegant Universe: Pt 1
NARRATOR: Now, on NOVA, take a thrill ride into a world stranger than science fiction, where you play the game, by breaking some rules, where a new view of the universe, pushes you beyond the limits of your wildest imagination. This is the world of string theory, a way of describing every force and all matter from an atom to earth, to the end of the galaxies—from the birth of time to its final tick—in a single theory, a theory of everything. Our guide to this brave new world is Brian Greene, the bestselling author and physicist. BRIAN GREENE (Columbia University) : And no matter how many times I come here, I never seem to get used to it. NARRATOR: Can he help us solve the greatest puzzle of modern physics—that our understanding of the universe is based on two sets of laws, that don't agree? NARRATOR: Resolving that contradiction eluded even Einstein, who made it his final quest.Stellarium
Stellarium 0.11.2 is a stable version that introduces some new features and closes 47 bug and wishlist reports. A lot of work has been done on making translatable text that wasn't localized before. This includes most of the text used by the default plug-ins, landscapes, countries, script names and descriptions. The Oculars plug-in now has an optional control panel with buttons for those affected by the "missing menu" bug, but it needs to be enabled in the Oculars configuration window. An feature for importing new satellites has been added to the Satellites plug-in, so be sure to reset its settings to get the new data sources.Chromoscope - View the Universe in different wavelengths
Credit: European Southern Observatory Two teams of researchers are now competing to develop a device that could profoundly change our understanding of the universe…but you’d be forgiven if you mistook it for a vaguely menacing hair-restoration product. Called a “laser frequency comb,” these are special laser systems that rapidly emit pulses of light across a wide range of frequencies or colors. In a plot of the emitted light, each distinct frequency appears as a peak; collectively, all the frequencies resemble a fine-toothed comb. And by examining starlight through the teeth of a laser comb, astronomers could begin finding Earth-like extrasolar planets on the cheap using ground-based observatories rather than expensive space telescopes. A star’s spectrum, its component colors of light, can reveal whether or not it has planets circling it.

