This is an image of the Earth, 240 M ago.
Image courtesy of the Wikipedia Commons
This period of time in Earth's history is a period when dinosaurs roamed the Earth. This period lasted 37 Million years. During this time, the continents we know today were combined into a giant continent named PANGAEA.
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This period of time in Earth's history is a period when dinosaurs roamed the Earth. This period lasted 37 Million years. During this time, the continents we know today were combined into a giant continent...more
Scientists ask many questions. One of the questions they like to ask is "Where did the atmosphere come from?" As always, scientists chip in with many different, and sometimes conflicting answers. Some...more
Once the Earth began to cool, water vapor, one of the volatiles, began to condense and form an ocean. According to the Goldilocks theory, Earth is at just the right distance from the sun for the temperature...more
Eventually, photosynthesis by the earliest forms of plant life (a form of life capable of feeding itself instead of feeding off of others) began to produce significant amounts of oxygen. One important...more
Why did the dinosaurs go extinct? No one knows for sure, but there are some explanations that seem to make sense. At the time the dinosaurs and lots of other species died out (which is sometimes called...more