Shaping Dione


Dione_TectonicsThis image of Saturn’s moon Dione shows a mixture of features: bright, linear features showing evidence of tectonic movant and impact craters. The tectonic features reveal that Dione has been heated and cooled since its formation, and scientists use those as clues to piece together the moon’s past. The impact craters are evidence of external debris striking the surface and tell about the environment in which the moon has existed over its history.

Image Credit: NASA

The Magellanic Clouds


Deep View of the Large and Small Magellanic CloudsEach of the thousands of white spots in this new image is a distant star, and the blue holes are our neighboring galaxies, the Large and Small Magellanic Clouds. Click on the image to embiggen it. Although this image looks as if it was made on a large telescope, it was taken using a portable setup consisting of a SBIG STL-11000M CCD camera and a Canon prime lens. It’s an example of how a small camera, a fast lens and a long exposure time can reveal huge faint features better than even a big telescope given good seeing conditions.

Image Credit: ESO