why is the surface of venus younger than the suface of the earth?

Question

does any one know why this is ...??

Answer 1

It is, as of yet, unknown.
Earths surface is both younger and older then Venus. Crust is being produced constantly in the mid atlantic ridge and in places like Iceland and Hawaii. There are also rockformations that have been dated to be 3.8 billion years old. So earth is an ever changing and diverse world. The surface of Venus, all of it, appears to be 600-800 million years old. Only explanation for this (currently) is that around that time the whole planet just turned itself inside out in one huge global event of catastrophic volcanism! This seem impossible but we really don´t know enough to fully answer your question.

Answer 2

Its not the fact that the surface is "younger", but surface features are different, as the temperature there is 475 deg C, and the atmospheric pressure is 90 times that of Earth.

The age of the rocks and most else are the same age as the Earth - about 5 billion years.

Its a bit like buying a cake recipe, making 2 cakes out of the same ingredients and baking one but not the other. The ingredients may both be the same age but look completely different.

Answer 3

Astronomers don't yet fully understand this feature of Venus, but many think Venus young-appearing surface is due to fairly recent and very extensive volcanoism. There is some observational evidence to support this theory, as well as evidence that Venus is still very volcanically active.

Answer 4

the surface of the earth is pretty well understood by monitoring seismic and volcanic activity. such measurements have not yet been made on venus, all we have is radar topography maps. venus seems not to have plate tectonics, which on earth releases a lot of internal heat. one idea to explain the young surface is that every few million years the internal heat builds up and completely melts the surface.

Answer 5

I can not answer this but i can offer some things that may help you figure it out,,,



VENUS

http://photojournal.jpl.nasa.gov/targetFamily/Venus

PICTURES OF THE SURFACE OF VENUS AFTER RUSSIA LANDED THE VENERA 9 AND VENERA 10 LANDERS ON ITS SURFACE,,

http://www.russianspaceweb.com/venera9_mitchell.html

http://www.russianspaceweb.com/venera10_mitchell.html

HERE ARE SOME COLOR PICTURES OF VENUS FROM THE VENERA 13 AND VENERA 14 RUSSIAN LANDERS ON VENUS,

http://www.mentallandscape.com/V_DigitalImages.htm#Venera13