The Sun is midway through its life of fusion. It's about five billion years old, and though its life is…
Earth is the only life-supporting planet we know of, so it's tempting to use it as a standard in the…
Life on Earth depends on six critical elements: Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous, and Sulfur. These elements are referred to…
During the 1970s, inventor/environmentalist James Lovelock and evolutionary biologist Lynn Margulis proposed the Gaia Hypothesis. This theory posits that Earth…
The first early humans to use fire had no inkling of what it would lead to. Fire was one of…
What is humanity? Do our minds set us apart from the rest of nature and from the rest of Earth?…
One of the most fascinating things about planet Earth is the way that life shapes the Earth and the Earth…