They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...

We discovered what we think is a black hole merging with a massive companion star, shredding it into a disk that feeds the black hole. It’s a rare and awe-inspiring phenomenon,” said Daniel Perley, ...

Our planet was rocked by some of the worst geomagnetic storms in more than 20 years. Triggered by a slew of solar flares, the ...

In May 2024, the strongest solar storm in twenty years raged. An international team led by ETH Zurich observed it. Their ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. The sun will appear larger in the sky than on any ...