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http://www.exploratorium.edu/ronh/age/

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?
http://www.pbs.org/wgbh/nova/physics/elegant-universe-einstein.html

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.
http://www.stellarium.org/

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.
http://www.chromoscope.net/ Ever wanted X-ray specs or super-human vision? Chromoscope lets you explore our Galaxy (the Milky Way) and the distant Universe in a range of wavelengths from gamma-rays to the longest radio waves. Change the wavelength using the slider in the top right of the screen and explore space using your mouse.

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. http://seedmagazine.com/content/article/planet_hunting_down_to_earth/

Planet Hunting, Down to Earth § SEEDMAGAZINE.COM

http://kisd.de/~krystian/starmap/

32 Nearby Stars

A spatial representation of every star within 14 light-years of the Solar System in orthographic projection. There are 32 stars in this region, including the Sun. The stars are colored according to the spectral type, which may not reflect the actual color. Please see this Wikipedia article for the listing of stars.
http://kisd.de/~krystian/starmap/leo.html

leo

A perpective spatial representation of the stars that make up the shape of the Leo Constellation when seen from the Solar System. The stars are colored according to the spectral type, which may not reflect the actual color. Please see this Wikipedia article for the listing of stars. Each grid square represents 20 square light years . The grid is aligned to the ecliptic . Planets are not shown on this map because they orbit stars at a relatively small distance.