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.
Our knowledge concerning the surface of Venus comes from a limited amount of information obtained by the series of Russian Venera landers, and primarily from extensive radar imaging of the planet. The radar imaging of the planet has been performed both from Earth-based facilities and from space probes.