In 1949, famed mathematician and physicist John von Neumann delivered a series of addresses at the University of Illinois, ...

Modern astronomy is giving us unprecedented views of the asteroids, comets, and other small bodies that litter our cosmic ...

Astronomers are gathering evidence of a massive hidden planet lurking beyond Neptune. These endangered predators have finally ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered that aging stars in their so-called ...

A look at the potential effects of a rogue planet entering our solar system, from shifting Earth’s orbit to triggering ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

Astronomers have revealed that the real center of our solar system isn't the sun. Gravity is playing a part in everything. The barycenter is the center.

On Jupiter’s moon Io—the solar system’s most volcanically active world—you’ll find the mountain Ionian Mons. Its height is estimated at nearly 8 miles. All in all, scientists have discovered more than ...

Researchers analyzed nearly half a million nearby star systems to understand how giant planets fare as their stars expand into red giants.