Add Yahoo as a preferred source to see more of our stories on Google. An artist's concept depicts the NISAR satellite in orbit over central and Northern California. Scientists at the University of ...

The annual clock of the seasons—winter, spring, summer, autumn—is often taken as a given. But our new study in Nature, using a new approach for observing seasonal growth cycles from satellites, shows ...

Satellite data reveals Earth's seasons are becoming fragmented and unpredictable, with neighboring regions falling out of ...

Each year, Earth reaches its closest point to the sun in early January, a moment called perihelion. In 2026, this occurred on January 3 at 12:15 p.m. EST, when Earth was about 91.4 million miles from ...