"What is contrary to the visible truth must change or disappear—that’s the law of life. If anyone thinks it’s really essential to build the life of human society on a foundation of lies, well, in my estimation, such a society is not worth preserving. If, on the other hand, one...See more

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NASA

Spiral Galaxy What's happening around the center of this spiral galaxy? Seen in total, NGC 1512 appears to be a barred spiral galaxy -- a type of spiral that has a straight bar of stars across its center. This bar crosses an inner ring, though, a ring not seen as it surrounds the pictured region. Featured in this Hubble Space Telescope image is a "nuclear ring" -- one that surrounds the nucleus of the spiral. The two rings are connected not only by a bar of bright stars but by dark lanes of dust. Inside of this nuclearring, dust continues to spiral right into the very center -- possibly the location of a large black hole. The rings are bright with newly formed stars.

repeat
NASA

Density Waves in Saturns Rings from Cassini

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pwaldrop

Tasmania