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- Spotted on January 14, 2008 by the Messenger spacecraft
- 25 miles wide
- Located in the Caloris basin
- Approximately 50 troughs radiate from the crater
- Possibly formed from volcanic activity
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Mercury Spider News
- Official NASA Site: MESSENGER - Unlocking the Secrets of Mercury
- Topix.net: Mercury Spider
- Google News: Mercury Spider
- Popular Science: "The Incredible Shrinking Planet" (January 31, 2008)
- "Scientists say the pictures reveal that the planet once had active volcanoes, and that Mercury is shrinking as it ages, leaving ridges reminiscent of wrinkles—strange features that may be a product of the planet's shrinking, cooling core."
- Baltimore Sun: " 'Spider' Spotted on Mercury" (January 31, 2008)
- WTOP: NASA Photos Reveal Mercury Is Shrinking (January 31, 2008)
- WESH: Mountains, Cold Temps Found On Mercury (January 31, 2008)
- FOXNews.com: NASA Spots Mysterious 'Spider' on Mercury (January 30, 2008)
- National Geographic: "Weird "Spider," Volcanism Discovered on Mercury" (January 30, 2008)
Mercury Spider on Amazon
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Mercury Spider Questions
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Is mercury in fish an urgent global health concern? 4 AnswersYes, mercury in fish is absolutely a health concern. For thousands of years, our ancestors have fished these waters and ate the fish and other marine life they... read more -
What, other than fish, could cause you to have too much mercury in your body? 6 AnswersThere are many products you encounter in day to day life that contain mercury. A broken battery or thermometer could expose you to mercury, as could some types ... read more -
How can you tell if a spider is poisonous? 4 AnswersSpiders aren't like snakes, where there are identifiable features worldwide, with only one or two exceptions. Yes, in the U.S., we only have the brown recluses-... read more
