Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth.

Geologic records reveal that magnetic field strength and oxygen levels rise and fall together, implying deep-Earth processes ...

Every breath we take in contains 21% oxygen, the gas that makes life on Earth possible. Oxygen, in its combined oxide state, ...

NASA scientists revealed the mechanism 540 million years old, associated with a shift in the Earth's magnetic field, which ...

For 540-million years, the ebb and flow in the strength of Earth’s magnetic field has correlated with fluctuations in ...

New NASA research demonstrates that 540 million years of Earth’s magnetic field changes have corresponded to surface ...

“We find that both exhibit strong linearly increasing trends, coupled with a large surge in magnitude between 330 and 220 ...

Earth's magnetic field strength and atmospheric oxygen levels have oscillated in tandem for around 540 million years, ...

Earth's magnetic field and oxygen levels have increased more or less in parallel over the past 540 million years, suggesting ...

For over half a billion years, Earth’s magnetic field has risen and fallen in sync with oxygen levels in the atmosphere, and scientists are finally uncovering why. A NASA-led study reveals a striking ...

A joint venture between NASA Goddard Space Flight Center and the University of Leeds discovered that the Earth's magnetic field strength and atmospheric oxygen levels over the past 540 million ...