Latest C/1999 S4 Stories
Hubble Space Telescope -- Astronomers analyzing debris from a comet that broke apart last summer spied pieces as small as smoke-sized particles and as large as football-field-sized fragments. But it's the material they didn't see that has aroused their curiosity. Tracking the doomed comet, named C/1999 S4 (LINEAR), NASA's Hubble Space Telescope's Wide Field and Planetary Camera 2 found tiny particles that made up the 62,000-mile-long (100,000-kilometer-long) dust tail and 16 large...
- The navel or umbilicus.
- In Greek archaeology: A central boss, as on a shield, a bowl, etc.
- A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.