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| Phew: Impending Mayan Apocalypse Has Been Postponed TIME A chapter in the new textbook, Calendars and Years II: Astronomy and Time in the Ancient and Medieval World, is questioning the conversion from the Mayan ... See all stories on this topic » | ||
| Stargazers can watch Orionid meteor shower, debris from Halley's Comet Examiner.com Astronomers think that the Orionid meteor shower originates from debris left behind by previous orbits of Halley's Comet. Another comet, Comet Hartley 2, ... See all stories on this topic » |
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