First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...

Earth’s rotation is no longer matching the tidy 24-hour day that our technology assumes. Since 2020, each day has been ...

Explore gravity's essential role in Earth's fast-paced journey through space and its impact on life and science.

The Sun has shifted into a volatile mood, hurling vast clouds of charged particles into space and putting Earth squarely in the firing line. Forecasters are now watching for signs that a so‑called ...

A new candidate exoplanet appears to almost uncanny similarities to Earth — but may differ in at least one major way.

NOAA warns of likely G1-class geomagnetic storming on Saturday, Feb. 7, through Sunday, Feb. 8, as a coronal mass ejection ...