How old is our planet Earth? After a bounteous controversy, scientists eventually accepted the age of the planet along with the rest of the solar system as about 4.55 billion years. But, what are the lines of evidences this value is derived...

The plate tectonics theory has been taken as the base of the formation of the continents on the Earth. But when the plates began to move, had put geologists in a quandary for a long time now. A recent find, described in the journal Science, shows...