Best Images of Saturn's Rings Obtained
February 1, 2017
As Cassini begins climbing into high orbits over Saturn, it's starting to get amazing images looking down on the rings in unprecedented detail.
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Spiral Galaxy Upset
May 4, 2011
In 1964, C. C. Lin and Frank Shu looked at the galaxy’s curvaceous arms and said, “You are my density.” The density-wave theory of spiral arm formation was married to galactic astronomy for nearly a half century. Now, however, we are back to the future, where theories do not always fulfill their destiny. An upstart […]