These rocks offer evidence that Earth had a strong magnetic field 3.7 billion years ago, but scientists aren't sure where that field could've come from. A 3.7-billion-year-old record of our planet ...

Earth's magnetic field, which is vital to protecting life on our planet from solar radiation, is mysteriously weakening. On average the planet's magnetic field has lost almost 10% of its strength ...

Languages; English. You can get in touch with Hannah by emailing [email protected] The eerie "song" created when a solar storm hits Earth's magnetic field has been recorded by scientists.

The Earth's magnetic field has reversed many times at an irregular rate throughout its history. Long periods without reversal have been interspersed with eras of frequent reversals. What is the ...