A terrestrial planet, it is sometimes called Earth's "sister planet", as the two are similar in size and bulk composition. The planet is covered with an opaque layer of highly reflective clouds and its surface cannot be seen from space in visible light. Venus was a subject of great speculation until some of its secrets were revealed by planetary science in the 20th century. Venus has the densest atmosphere of the terrestrial planets, consisting mostly of carbon dioxide, and the atmospheric pressure at the planet's surface is 90 times that of the Earth.
Venus' surface has been mapped in detail only in the last 20 years. It shows evidence of extensive volcanism, and some of its volcanoes may still be active today. In contrast to the constant crustal movement seen on Earth, Venus is thought to undergo periodic episodes of plate tectonics, in which the crust is subducted rapidly within a few million years separated by stable periods of a few hundred million years.
More on [ Venus ]
Transits :: Eclipses, Occultations and Transits

The Soviet Exploration of Venus - Extensive detail on the soviet missions between 1961 to 1984. Includes many images that have been digitally enhanced.
NSSDC: Venus - From NASA's photo gallery.
Meta Description: [ NSSDC Photo Gallery: Venus - A collection of images of the planet Venus ]
Orrery: Venus - Concise introduction to the planet, with resources.
Meta Description: [ Venus, from ORRERY: the Solar System in action. Second closest planet to the Sun, yet the hottest! ]
Planet Venus - overview and pictures - Illustrated guide to Venus. Contains description, facts, statistics and a brief history.
Meta Description: [ An in-depth factual look at the planet Venus, illustrated with pictures and information ]
Venus - From Views of the Solar System
Meta Description: [ Venus was named after the Roman goddess of love and beauty, but is now known to be very different from Earth. It has no oceans and is surrounded by a heavy atmosphere of carbon dioxide with clouds composed of sulfuric acid droplets. ]
Venus - Details on this planet.
Venus - From The Nine Planets.
Venus - Facts, early knowledge and history of man's exploration of Venus.
Venus - NASA's Windows to the Universe.
Venus Basic Information - Summary articles and related links.
Meta Description: [ Venus - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data & Pictures of Venus. Venus. Astronomy Guide to Space exploration close to home. Venus whose Greek equivalent was Aphrodite was the Greek goddess of love and beauty. It probably got its name from being the brightest ob... ]
Venus: Earth's troubled sister - Although it looks a lot like Earth, it's actually dramatically different.
Meta Description: [ Although Venus looks a lot like Earth. It's actually dramatically different. ]
Welcome to the Planets: Venus - Planetary profile and vital statistics, some pictures.
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