Research & Development

Sound of Earth’s Magnetic Flip 41,000 Years Ago

Approximately 41,000 years ago, Earth’s magnetic field briefly reversed during what is known as the Laschamp event. During this time, Earth’s magnetic field weakened significantly—dropping to a minimum of 5% of its current strength—which allowed more cosmic rays to reach Earth’s atmosphere. […]

Research & Development

Swarm Detects Tidal Magnetic Signatures

A study using data from ESA’s Swarm mission suggests that faint magnetic signatures created by Earth’s tides can help us determine magma distribution under the seabed and could even give us insights into long-term trends in global ocean temperatures and salinity. […]