Tag: Earth’s geological timeline
Age of Earth: How old is our planet?
Earth is a lot older than we are. Humans have only been around for a small fraction of Earth's history, which dates back about 4.54 billion years. Our planet formed not long after the...
Thriving Early Life on Earth: Surviving Catastrophic Asteroid Impacts
Sixty-six million years ago, a catastrophic asteroid impact changed the course of Earth's history. The impact, which occurred in what is now the Yucatán Peninsula in Mexico, wiped out 75 percent of species on...