geomagnetic field

What happens when polarity reversal earth?
The geomagnetic field is weakening and many people believe that polarizing is one of the causes of the end of the world.
The Swarm satellite trio has entered the position
Executives on the ground said that they had adjusted three European satellites to the correct position on their orbit, beginning the survey of the geomagnetic field.
Mysterious geomagnetic field
Europe has deployed a new mission to discover the mystery of the Earth's magnetic field, and find out why the shield that protects the Earth seems to be weakening.
Determine the time the magnetic field once reverses
About 41,000 years ago, the Earth's magnetic field was once completely reversed, and if there was a compass at the time, the needle would point south, not north.
Time travel
A favorite topic of science fiction films is 'the portal', ie space or time gates connecting astronauts with distant worlds.