Saturn’s moon Enceladus, a tiny outpost in the frigid outer solar system, ought to be cold and geologically dead. But observations by the Cassini spacecraft, which flew within 175 kilometers of Enceladus on July 14 (SN: 7/30/05, p. 69: Available to subscribers at Cassini eyes youthful-looking Saturnian moon), reveal that it continues to undergo eruptions “right this minute,” says Cassini researcher John Spencer of the Southwest Research Institute in Boulder, Colo.
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