Scientists have puzzled over this question for decades, ever since orbiting spacecraft picked up signs of a high magnetic field in lunar surface rocks. The moon itself has no inherent magnetism today.

Gleaning data from old rocks may result in bias. Now, geophysicists have a way to improve their methods to overcome challenges in studying the history of the Earth's core and magnetic field that make ...

Glowing rocks in Michigan? What to know about 'Yooperlites' Jalen Williams, Detroit Free Press. Wed, May 28, 2025 at 12:46 PM UTC. 4 min read.

Mysteriously magnetic rocks collected on Apollo mission finally get an explanation. News. By Ben Turner published 18 January 2022 ...

The instrument could select rocks that contain a magnetic compound – magnetite – that is also produced by bacteria on Earth. The rocks could then be brought back to Earth for closer examination.

Geologists uncovered ancient rocks in Greenland that bear the oldest remnants of Earth’s early magnetic field. The results potentially extend the age of the Earth’s magnetic field by hundreds ...

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.

Yooperlites are rocks that fluoresce in the dark under ultraviolet light. They became known when an Upper Peninsula resident discovered them in 2017, according to the Michigan Department of ...

What to know about Michigan's northern Great Lake It's the only Great Lake entirely within US. 10 things to know about Lake Michigan How deep is Lake Huron? What to know about parks, fishing and more ...