Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean ...

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 ...

Astronomers have identified a rare sednoid called Ammonite, an icy object beyond Neptune that offers new insight into the ...

The National Oceanic and Atmospheric Administration is predicting a G4-level geomagnetic storm after a long-duration solar ...

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

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

At the beginning of the exoplanet age, the goals were fairly simple. The first was to find as many of them as possible to ...

Earth's magnetic field was struck by a "severe" solar storm yesterday (Jan. 19), triggering vibrant auroras in the U.S. and ...

This is where Emmy Noether, a groundbreaking German mathematician, comes into the picture. She found a breathtakingly simple ...

The sun sure has woken up this week, unleashing a powerful X-class solar flare on Jan. 18 that hurled a colossal, fast-moving ...

Europe’s dependence on the United States for NATO security limits its options. Its strongest response could be retaliating with its own trade “bazooka.” By Jeanna Smialek The American president’s vow ...

Trump Is Pushing the U.S.-Europe Alliance Onto a Precipice As President Trump tries to coerce European leaders over Greenland, they are pondering the unthinkable: Is an 80-year-old alliance doomed? 4 ...