This Day In Astro History

Rocky Epimetheus and smog-enshrouded Titan, with Saturn's A and F rings stretching across the scene as captured by Cassini spacecraft April 2006.

March 25

1951 - 21 cm wavelength radiation from atomic hydrogen in the Milky Way first detected; 1420 MHz H I studies continue to form the basis of a major part of modern radio astronomy.

1655 - Titan, Saturn's largest satellite, discovered by Christian Huygens. He also discovered Saturn's ring system the same year.
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It is my conclusion that human evolution and the motions of matter in space are intrinsically linked. The observation and understanding of the complexity of biological history on Earth cannot be complete without the tandem observation and understanding of a dynamic greater cosmos. - SpaceGene