The real estate term âunder contractâ means that a binding agreement exists between a buyer and a seller involving property. The buyer and the seller are in agreement with the terms in the contract. When a property is under contract, the seller may not enter into contract with any other buyer.
Much of the surface of Venus appears to be rather young. The global data set from radar imaging reveals a number of craters consistent with an average Venus surface age of 300 million to 500 million years. There are two continents, which are large regions several kilometers above the average elevation.
Photos showed mountains, craters, and plains and that most of the rock is basalt which is typical of volcanism. The most extensive radar imaging was obtained from the Magellan orbiter in a 4-year period in the early 1990s. As a consequence, we now have a detailed radar picture of the surface of Venus. The adjacent animation shows the topography of the surface as determined using the Magellan synthetic aperture radar (black areas are regions not examined by Magellan). An MPEG movie (303 kB) of this animation is also available.