Finding Another Earth

Finding Another Earth: How Will Scientists Confirm It Exists? | Space.com: "The Kepler mission is a starting point in the search for a true Earth-like planet, Nicolas Cowen a postdoctoral fellow in astronomy at Northwestern University in Evanston, Ill. told SPACE.com. "Kepler just told us how big the telescope we have to build is." There could be more than 17 billion Earth-sized planets in the Milky Way galaxy alone, but that doesn’t mean they’re easy to research once detected. Once planets of interest are confirmed by Kepler, then other instruments can be used to investigate the specifics of the planet."







A Year on Mars (video)




A Year on Mars: "One year ago, the rover's arrival on Mars ushered in a new era of exploration. Since then, it has been inching toward a mountain that could yield fascinating insights."



Magellanic Stream


























Magellanic Stream

Explanation: Spanning the sky toward the majestic Clouds of Magellan is an unusual stream of gas: the Magellanic Stream. The origin of this gas remains unknown but likely holds a clue to the origin and fate of our Milky Way's most famous satellite galaxies: the LMC and the SMC. Until recently, two leading genesis hypotheses have been considered: that the stream was created by gas stripped off these galaxies as they passed through thehalo of our Milky Way, or that the stream was created by the differential gravitational tug of the Milky Way. Recently, however, wide angle radio images -- including those from the Byrd Green Bank Telescope -- have shown that the Magellanic Stream is longer and older than previously thought, perhaps as old as 2.5 billion years. These observations bolster a third possible origin for the stream -- that the Large and Small Magellanic Cloud galaxies once passed so close to each other that gravitational tides triggered a burst of star formation that left the stream. Pictured above digitally superposed on a recently-completed all-sky image in visible light, theradio emission of Magellanic stream is shown in false color pink extending across the sky and ending at the two Magellanic galaxies on the lower right.(source: http://apod.nasa.gov/apod/ap100125.html)



Riding the Space Shuttle Booster with enhanced sound





Riding the Booster with enhanced sound - YouTube: "From the upcoming Special Edition Ascent: Commemorating Space Shuttle DVD/BluRay by NASA/Glenn a movie from the point of view of the Solid Rocket Booster with sound mixing and enhancement done by the folks at Skywalker Sound. The sound is all from the camera microphones and not fake or replaced with foley artist sound."






SPACE.com

Space College - ISEE-3