Extremists in both major U.S. political parties, MAGA Republicans and uncompromising Democrats, are widening the chasm between Americans to the detriment of the nation.

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

A new peer-reviewed study finds that early planet formations were assembled from fragments of earlier bodies within the Solar System.

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

On October 6 1995, at a scientific meeting in Florence, Italy, two Swiss astronomers made an announcement that would transform our understanding of the universe beyond our solar system. Michel Mayor ...

"It was just a matter of time before we found them." ...

New studies of the “platypus of materials” help explain how their atoms arrange themselves into orderly, but nonrepeating, ...

Plus: Why are hurricanes so powerful? Are winds on other planets like they are on Earth? The answer, my friend, is blowin' in ...

Planets are not living organisms and, like molecules, do not have to be biological. But at least one is deeply biological in ...

This artist's illustration shows a molten planet with asteroids nearby. Earth likely got its water from two sources: off-gassing during the magma ocean phase, and delivery by asteroids and comets.

Fast-moving objects like interstellar comet 3I/ATLAS may be planet-forming seeds, potentially helping to solve an old Solar System mystery. On July 1, 2025, astronomers spotted an object moving ...