Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The planet's seasons are not as immutable as previously thought. Turns out there are parts of the world that have different ...

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

NASA captured 20 years of changing seasons in a striking new global map of the home planet. The data visualization, released this week, shows Earth's fluctuations as seen from space. The polar ice ...

We wouldn't blame you for taking Earth's four seasons for granted. Spring, summer, fall, and winter have been regularly calling the shots on what we wear, what time we wake up, and how much rock salt ...

Meteorologist Dalencia Jenkins describes how Earth's proximity to the sun impacts the seasons — and it isn't how you might expect.

Researchers find that shifts in Earth’s orbit can trigger abrupt climate changes, even in warm periods without ice sheets.