Lunar-based measurements reveal Earth’s outgoing radiation is dominated by low-order spherical harmonics, providing unified global data for climate and environmental studies ...

Mars is not just a colder, dustier version of Earth. It is a planet soaked in high‑energy particles that batter rock, metal, ...

Add Yahoo as a preferred source to see more of our stories on Google. The Earth's magnetic field deflects particles emitted by the Sun. Mark Garlick/Science Photo Library via Getty Images The Earth’s ...

In May 2024, a powerful solar storm sent a surge of charged particles toward Earth, leading to an extraordinary discovery: a never-before-seen radiation belt now circles our planet. This unexpected ...

Learn how some of Earth’s magnetic field flips last longer than others, weakening our defenses against cosmic radiation.

On May 10, 2024, the strongest solar storm in 20 years sparked auroras on Earth that were visible as far south as Florida. It also created two new bands of radiation around the planet, researchers ...

Solar flares were once thought to be responsible for historical spikes in the Earth’s radiation levels. But a new study suggests that those spikes of radiation may not be caused by solar flares as ...

When you look at the sky, you only see a bright blue picture with clouds, some planes, maybe the occasional flying bird, and that’s about all. Nothing seems out of the picture, but beyond that, there ...

Forty years ago, Voyager 2 flew past Uranus and observed radiation levels that defied explanation. Now, scientists may ...

A ring of radiation previously unknown to science fleetingly surrounded Earth last year before being virtually annihilated by a powerful interplanetary shock wave, scientists say. NASA's twin Van ...

What: Artemis II will carry astronauts on the first crewed mission beyond low Earth orbit since Apollo, testing systems and gathering data critical for sustained luna ...