Magnetic fields that stretch across thousands of light-years should take a very long time to organize. Standard dynamo theory ...

41,000 years ago, a cataclysmic event shook our planet and forever changed humanity’s path. The Earth’s magnetic field briefly collapsed, leaving life on Earth exposed to increased solar and cosmic ...

How fast can a galaxy build ordered magnetic fields spanning thousands of light-years? Existing theories say several billion years, but observations of galaxies in our universe imply shorter ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed. What followed was a cascade of environmental and biological changes that ...

Scientists tracing small molecular clouds located near the Milky Way disc have “seen” the skeleton of the magnetic field surrounding them for the first time to better understand its ...

The sublime, almost fearful nature of deep time sometimes awes me even more than the kind of distances we routinely discuss in these pages. Yes, the prospect of a 13.8 billion year old cosmos strung ...