This is the geodynamo. Related: NASA's Perseverance rover may already have found signs of life on Mars, discovery of ancient ...

We review and test the best and coolest magnetic toys for boy and girls, toddlers and kids, such as Magna-Tiles, blocks, ...

Meteorite samples agree with this idea for the inner Solar System, but we had no idea if the outer Solar System was affected by magnetism. Thanks to asteroid Ryugu, now we know. The asteroid is a ...