A peculiar property of the Earth’s magnetic field could help us to work out how our planet was created 4.5 billion years ago, according to a new scientific assessment. There are several theories about how the Earth and the Moon were formed, most involving a giant impact. They vary from a model where the impacting Read More…
Earth’s magnetic field
At Big Think: How Earth’s magnetic field bounced back just as complex life was emerging
“The insights gathered by [this research] offer a clearer picture of the dramatic events that once unfolded deep within our planet’s interior. They also provide new hints as to how Earth narrowly avoided a Mars-like fate, just as complex, multicellular life was beginning to emerge.”
At Live Science: ‘STEVE’ descends on North America after surprise solar storm
“The glowing river of light [known as ‘STEVE’] may look like an aurora, but it’s actually a unique phenomenon that was considered “completely unknown” to science upon its discovery.”
At Live Science: Solar storm from hole in the sun will hit Earth on Wednesday (Aug. 3)
Ben Turner writes: Thankfully, the storm is classified as weak. High-speed solar winds from a “hole” in the sun’s atmosphere are set to hit Earth’s magnetic field on Wednesday (Aug 3.), triggering a minor G-1 geomagnetic storm. Forecasters at the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC) made the prediction after observing Read More…
At EurekAlert: Earth’s magnetic poles not likely to flip
Researchers: The emergence of a mysterious area in the South Atlantic where the geomagnetic field strength is decreasing rapidly, has led to speculation that Earth is heading towards a magnetic polarity reversal. However, a new study that pieces together evidence stretching back 9,000 years, suggests that the current changes aren’t unique, and that a reversal may not be in the cards after all.