It is possible to make a material emit more radiation than it absorbs, violating the laws of physics in a way that could make ...

Angular momentum is a fundamental quantity in physics that describes the rotational motion of objects. In quantum physics, it ...

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

The transient field-frequency domain of magnetic dipole in a two-layered conducting Earth has been studied. It is obtained as a summation of waveguide modes plus contributions from branch cuts in the ...

Scientists convert Earth's magnetic field collapse from 41,000 years ago into chilling audio, revealing ancient cosmic ...

In a new paper, published in the journal Current Biology this week, Keller and colleagues confirm that bonnethead sharks can indeed use Earth’s magnetic field to navigate.

Earth’s oxygenated atmosphere and magnetic field make life possible, but scientists have discovered that there’s a hidden ...

In 2021, researchers predicted that a geomagnetic reversal could lead to mass extinctions and climate chaos—not from the flip itself, but from the collapsing magnetic field. With Earth’s shield ...

That paired heartbeat is the bombshell inside a new Science Advances study led by NASA Goddard geophysicist Weijia Kuang. Using a half-billion-year record, Kuang’s team shows the planet’s magnetic ...

Solar sails represent one of the most elegant concepts in space exploration: using sunlight itself to propel spacecraft ...

Internal radiation therapy (iRT) is an emerging therapeutic approach based on high-energy radionuclide implants categorized as alpha or beta particles placed directly into the tumor to induce cancer ...