Scientists are working to solve a mystery of Earth’s molten outer core, which lies more than 2,000 kilometers beneath our feet

The liquid iron in Earth’s outer core doesn’t always behave as expected. When it changed direction in an unexplained way, ESA satellites provided data on the direction of flow, helping scientists gain...

Abstract The International Geomagnetic Reference Field (IGRF) has been regularly updated since its inception in 1965. Every recent iteration contains an estimate of the geomagnetic secular variation (...

Nurture feedback literacy through collaborative evaluation. Frederik Dahl Madsen and Kay Douglas show how a new approach works in two contrasting courses

Nurture feedback literacy through collaborative evaluation. Frederik Dahl Madsen and Kay Douglas show how a new approach works in two contrasting courses

Bird flu surges and a government shutdown collide, complicating efforts to track cases and protect flocks.

A 6-year cycle has long been recognized to influence the Earth’s rotation, the internal magnetic field and motions in the fluid Earth’s core. Recent observations have revealed that a 6-year cycle also...