Earth's oldest known piece of continental crust dates to the era of the moon's formation. Australia holds the oldest continental crust on Earth, researchers have confirmed, hills some 4.4 billion years old.
They utilize a process known as the scientific method to study different aspects of how people think and behave. This process not only allows scientists to investigate and understand different psychological phenomena, but it also provides researchers and others a way to share and discuss the results of their studies.