Instead of relying on the sun’s magnetic field, which had proven too faint in earlier studies, the researchers assumed the moon had a weak, internal dipole field—similar in shape to Earth’s but far ...

Earth is an island of tranquility in a sea of searing solar radiation and energetic particles, and we have the planet's magnetic field to thank. Scientists searching for early records of Earth's ...

This photo shows an example of the 3.7 billion year-old banded iron formation found in the northeastern part of the Isua Supracrustal Belt. Geologists at MIT and Oxford University have uncovered ...

An example of the 3.7 billion year old banded iron formation that is found in the northeastern part of the Isua Supracrustal Belt. Credit: Claire Nichols. A new study, led by the University of Oxford ...