great oxygenation event
What Can Early Earth Teach Us About the Search for Life?
Earth is the only life-supporting planet we know of, so it's tempting to use it as a standard in the…
Scientists Discover a New Way Exoplanets Could Make Oxygen; Unfortunately, it Doesn’t Require Life
Finding oxygen in an exoplanet's atmosphere is a clue that life may be at work. On Earth, photosynthetic organisms absorb…
The Early Earth was Really Horrible for Life
Earth has had a long and complex history since its formation roughly 4.5 billion years ago. Initially, it was a…
Life on Earth Needed Iron. Will it be the Same on Other Worlds?
A lot has to go right for a planet to support life. Some of the circumstances that allow life to…
Animals Could Have Been Around Hundreds of Millions of Years Earlier Than Previously Believed
According to new Earth sciences research, the oldest fossilized remains of animal life may have been found in the Canadian…
Science Fiction Might Be Right After All. There Might Be Breathable Atmospheres Across the Universe
The last few years has seen an explosion of exoplanet discoveries. Some of those worlds are in what we deem…
About 2.3 Billion Years Ago, a Firehose of Oxygen was Released Into the Atmosphere
According to a new study by an international team of scientists, oxygen was introduced rather rapidly to Earth's atmosphere over…