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only galaxies with large bars appear to have such a "spiral within a spiral
while the other four galaxies (NGC 7317
The Cygnus region of the Milky Way is filled with hydrogen gas that glows red
its photosynthesis could have been influenced by the star's red-wavelength photons
In the first half of August
Saturn Eclipse Panorama Size:30x90 cm only galaxies with large barsOn July 19, 2013, in an event celebrated the world over, NASA's Cassini spacecraft slipped into Saturn's shadow and turned to image the planet, seven of its moons, its inner rings and, in the background, our home planet, Earth. Narrow part of this panorama is known as Cassini's Pale Blue Dot. With the sun's powerful and potentially damaging rays eclipsed by Saturn itself, Cassini's onboard cameras were able to take advantage of this unique viewing