Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/varstars/msg/1165388
Дата изменения: Sun Dec 10 20:41:45 2006
Дата индексирования: Sat Feb 12 18:18:19 2011
Кодировка:
Journal "Peremennye Zvezdy"
Peremennye Zvezdy

A Venusian Tick
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A Venusian Tick
Credit & Copyright: NASA, Magellan Project
Explanation: Data from the Magellan spacecraft has shown the Face of Venus to contain a host of volcanic features. This image shows an example of a fairly common type of venusian volcanic feature. Known as a "tick" it represents a volcano about 20 miles wide at the summit with ridges and valleys radiating down its sides lending it an insect like appearance.

Scientists are particularly interested in exploring the geology of Venus. Because of its similarity with the Earth in size, density, and overall location in the solar system, Venus may offer key insights into the workings of our own planet. Do the familiar processes of volcanism and plate tectonics occur on our sister planet as well as our own? The detailed radar mapping of the planet performed by the Magellan probe has gone a long way toward answering this question.

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

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