Tag: Earths

Peter Ward: Earth’s mass extinctions

Asteroid strikes get all the coverage, but “Medea Hypothesis” author Peter Ward argues that most of Earth’s mass extinctions were caused by lowly bacteria. The culprit, a poison called hydrogen …
0

What Happens When Earth’s Magnetic Poles Reverse?

Thousands of years ago, Earth’s magnetic poles flipped. What will happen the next time they reverse? Tara explains. Read More: Extremely rapid directional change during Matuyama-Brunhes geomagnetic polarity reversal “We …
0