Impact Amplification Researchers have considered several possibilities. External sources, such as the early solar wind or Earth’s magnetic field, were too weak or faded too early.

His team hopes to find out how Earth’s field forms and evolves. “Any theory they’re able to even rule out will be front-page news to many of us,” says Peter Olson, an earth and planetary ...

The strength of Earth's magnetic field has correlated with fluctuations in atmospheric oxygen for hundreds of millions of years, according to a newly released analysis by NASA scientists ...

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 ...

Scientists discover hidden "ghost plume" beneath Oman using earthquake data, revealing Earth's secret heat pathways.

An unexpectedly strong solar storm rocked our planet on April 23, 2023, sparking auroras as far south as southern Texas in ...

Two days earlier, the sun blasted a coronal mass ejection (CME)—a cloud of energetic particles, magnetic fields, and solar material—toward Earth.

Scientists are keeping a close eye on the sun. We know that the sun goes through cycles of activity, and 2025 is expected to ...