EARTH - Which planet has water?

The Earth as a planet, has evolved slowly over the 4.5 billion years of existence. The atmosphere that we now have, is not the same over its long evolution. The oceans and lakes were not here when the Earth formed. Evidence shows that it took almost 1 billion years before water was prevalent. The Earth is so different than the other planets because of the creation of water, which was formed with hydrogen and oxygen merged inside the Earth, and outgassed when volcanic activity took place. Steam slowly poured from the many volcanoes and created a planet of water.

Land configurations were not the same as they are today. The crust has moved and shifted for billions of years, forming mountains, valleys, and plains. Our landscape is a result of all these interactions.

The Earth and its Moon are the most studied of all the planets and satellites of the Solar System.