Earth is now closer to the sun than at any other time of the year. Here's why our planet's axial tilt, not proximity to the ...

Perihelion is when Earth is closest to the Sun, happening between January 2 and 4. In 2025, it will occur on January 4 at ...

Scientists have identified the “mystery volcano” that erupted in 1831 and cooled Earth’s climate. They have linked it to an ...

Mars experiences explosive changes during spring. Ice sublimates directly into gas, causing avalanches and geysers.

When one of the poles points more toward the Sun than the other pole, that half of the planet gets more sunlight than the other half, and it’s summer in that hemisphere. When that pole tilts away from ...

A solar storm could add excitement to New Year’s Eve, with the northern lights expected to light up the skies across several ...

At 7:28 this morning, the earth reached the point at which it is closest to the sun in its orbit, known as the perihelion.

Some stargazers are calling it a planetary parade: Every other planet in our solar system can be seen in the sky tonight.

The northern lights could be visible Tuesday night and Wednesday night over the Northern Hemisphere due to a geomagnetic ...

On Mars, spring explodes into action with violent transformations. Frost avalanches, carbon dioxide gas geysers, and powerful winds reshape its surface, leaving behind stunning patterns like swirling ...

Nearly two centuries after a massive volcanic eruption cooled Earth’s climate, scientists have identified the source: the ...