Poets and writers have woven emotional tales throughout history. Often, we writers describe emotions through body parts. Our hearts ache when we experience unrequited love. We get butterflies in our ...

Earth was not always the blue-green world we know today: early Earth's oxygen levels were about a million times lower than we now experience. There were no forests and no animals. For ancient ...

Using advanced geophysical imaging techniques, archaeologists have discovered traces of an enormous circular structure, believed to be as old as 4,000 years. This prehistoric monument is believed to ...