The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

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

Despite its small size, Mars seems to have a huge impact on the orbital cycles that govern Earth’s climate, especially those ...

In the bigger picture, "down" could be defined as being below the plane of the solar system, which is known as the ecliptic.

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

NORFOLK, Va. — The earth’s journey around the Sun is not a perfect circle. Instead, our planet follows a slightly oval-shaped path called an ellipse, meaning our distance from the Sun changes ...

Each year, Earth reaches its closest point to the sun in early January, a moment called perihelion. In 2026, this occurred on ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The sun will appear ...

Comet C/2023 P1, Nishimura visible from Earth. Credit: NASA/JPL-Caltech | edited by Space.com ...

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 extent to which Mars is quietly tugging on Earth's orbit and shaping the ...

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