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 ...

"Springtime on Earth has lots of trickling as water ice gradually melts. But on Mars, everything happens with a bang," Serina ...

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

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

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 ...

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.

Summer nights mean late sunsets and lingering twilight, hardly a recipe for great night-sky observing. But this January ...

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

The daily weather we experience is largely shaped by atmospheric conditions nearly 30,000 feet above us, where a key factor ...

Clam shells could help scientists understand the Atlantic Ocean’s sensitive circulation system — and predict whether that ...

On a warm but overcast afternoon, hundreds of Indigenous representatives and spiritual leaders gathered to witness a remarkable convergence of native nations from across the Americas. Serving as ...

Earth will reach its closest point to the Sun, an astronomical event called Perihelion Day. This annual occurrence happens every January and offers a fascinatin ...