The sun shines above the Earth’s horizon. Perihelion, the point when Earth is closest to the Sun, occurs annually in early January. NASA At the start of the year, Earth will quietly reach a milestone ...

As the year gets underway, something important happens quietly in space while life on Earth carries on as usual. Our planet ...

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

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

Today, science can narrow down potential oil reserves with surprising accuracy — especially when it comes to shale oil, found ...

At the start of the year, Earth will quietly reach a milestone in its orbit around the sun. Known as perihelion, this is the moment when our planet is closer to the sun than at any other point in the ...