This is an example of Venus volcanism.
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NASA/JPL

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Volcanism of Venus

The Magellan and VeneraThe surface of Venus is an example of the fact that there are many different kinds of volcanism besides the building of volcanic cones such as those found on Earth. Among the different kinds of volcanism exhibited by Venus are:


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Magellan

On May 4, 1989, Magellan, a spacecraft built mostly from spare parts from other missions, was carried into Earth orbit by the Atlantis space shuttle and launched toward Venus. It arrived on Aug. 10, 199...more

Volcanoes

There are several ways in which a volcano can form, just as there are several different kinds of volcanoes. Volcanismis part of the process by which a planet cools off. Hot magma, rising from lower reaches...more

Volcanoes of Venus

Venus has a number of shield volcanoes such as Mauna Loa found on Earth. Among the volcanoes of Venus are Sif Mons (shown here with a lava plain) and Gula Mons on Western Eistla Regio, Rhea Mons and Theia...more

Venus Domes

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Volcanic Rises

Volcanic rises are thought to be formed by plumes, in a similar fashion to island formation on Earth. On Venus, there are three types of volcanic rises: Rift-Dominated Rises These are rises that contain...more

Venus Crowns

On Venus, domes can sometimes rise up and then collapse. Collapsed domes are called "crowns". Crowns are a signature of volcanism on Venus. Other kinds of domes exhibited by Venus are: pancakedomes (shown...more

Alpha Regio

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