Learn how starquakes, subtle vibrations inside stars, revealed hidden magnetic fields in red giants and how this stellar ...
There are several theories about how the Earth and the Moon were formed, most involving a giant impact. They vary from a model where the impacting object strikes the newly formed Earth a glancing blow ...
Repeated impacts can create minerals that lock in magnetic signals long after the Moon’s global field has disappeared.
Although magnetic forces are usually much weaker than gravity in shaping cosmic structures, the findings suggest that strong, ordered magnetic fields may have emerged earlier than expected. Over time, ...