Mathematical evidence indicates that our universe is flat, but it could be infinitely big, as well. You can figure out if an ...

NASA's GOLD mission found unexpected, and unexplainable, C-shapes and X-shaped formations in part of Earth's atmosphere ...

A potentially hazardous asteroid roughly the size of an aircraft carrier is due to pass within 2.8 million miles (3.5 million ...

The discovery of the exoplanet, a super-Earth called Kepler-735c, is all down to something called transit timing variations, ...

Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.

As astronomers study an exoplanet called K2-18b, conflicting research reveals how difficult it is to find evidence of life ...

Earth’s tilt is what causes the seasons; in the summer, when our planet’s pole is tipped toward the sun, the days are longer, ...

Hidden in every tenth of a degree of extra warmth are hair-trigger switches built into Earth systems that are critical for ...

Six million years ago, the Mediterranean Sea wasn’t nearly as picturesque as it is today. It was barely even a sea; tectonic activity had raised a mountain range in the Strait of Gibraltar ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

See phenomenal photos of the world’s wonders from the February 2017 issue of National Geographic magazine.

The Earth is the only planet in the universe that we know for sure supports life. While it is likely that many others do, it ...