According to Scientific American, data collected by the European Space Agency (ESA) satellite array called Swarm shows that the Earth's magnetic field, which shields the planet from dangerous cosmic radiation spewing from the sun, has been weakening. Scientists theorise that this may be a result of the poles getting ready to switch, meaning that a traditional compass would start pointing South rather than North.
Floberghagen hopes that more data from Swarm will shed light on why the field is weakening faster now.
Still, there is no evidence that a weakened magnetic field would result in a doomsday for Earth. During past polarity flips there were no mass extinctions or evidence of radiation damage. Researchers think power grids and communication systems would be most at risk.
Earth's magnetic field acts like a giant invisible bubble that shields the planet from the dangerous cosmic radiation spewing from the sun in the form of solar winds. The field exists because Earth has a giant ball of iron at its core surrounded by an outer layer of molten metal. Changes in the core's temperature and Earth's rotation boil and swirl the liquid metal around in the outer core, creating magnetic field lines.
|The World's Largest Scale Model of the Solar System? It's In Sweden and it's as Big as the Country Itself|
|In Layman's Terms: Gravitational Waves|
|"Blood from young mice reverses ageing in old mice."|
|Vandals from Outer Space|
|Maori legend of man-eating bird is true|
|“Like a gigantic version of something you’d find in Toys 'R' Us.”|
|“If that fly on the wall is actually a fly.”|
|“You trust Google more than any priest, scholar, rabbi, coach, mentor, boss.”|
|iotacons: Pixelated Art by Andy Rash|
|Building an AR-15 Rifle Using a 3D Printer|
|Ubuntu 17.10 Artful "What the Fuck" Aardvark|
|Will Powell Builds His Own Google Project Glass With Existing Technology|
|“China’s unmanned stores allow people to live their lives with almost zero human contact.”|
|Dutch Engineer Flies Using Custom-Built Bird Wings|
|Robots Make Another Victim: Sport Journalists|
|"The actual price for building a 'personal Google for everyone, everywhere' would in fact be zero privacy for everyone, everywhere."|
|The Stripe Button: a Ridiculously Easy Way to Pay for Stuff Online|