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The mosaic was created from 21 false-color frames taken during close approaches to Enceladus on March 9
Messier had no idea of the significance of his discovery at the time
and dust lanes trace out fine structures in the disk and bar
As NGC 6814 is a very active galaxy
a star sheds some of its outer layers
Dust Devil Trails Size:63" x 42" (160 cm x 107 cm) The mosaic was created fromThis high resolution picture from the HiRISE camera on board the Mars Reconnaissance Orbiter shows twisting dark trails criss crossing light colored terrain on the Martian surface. Newly formed trails like these had presented researchers with a tantalizing mystery but are now known to be the work of miniature wind vortices known to occur on the red planet, in other words Martian dust devils. Such spinning columns of rising air heated by the warm
