Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led ...

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

The solar system's two largest planets adorn the evening sky this month, while the smaller inner planets linger near the Sun and remain mostly out of sight. You'll want to make Saturn your first ...

The big astronomical event in February is a rare “planetary parade,” according to NASA. You’ll be able to see Mercury, Venus, ...

Researchers estimate that the planet has about a 50% chance of being in its star's Hoble zone.

Jupiter harbors more oxygen than the sun, a new study finds, giving astronomers a crucial clue about how our solar system's planets formed.

A unique characteristic of the candidate planet HD 137010b is its ice-cold temperature.

Astronomers have detected an exoplanet candidate around a Sun-like star just 146 light-years away from us.

Thick, swirling clouds cover Jupiter from pole to pole. They hold water like Earth’s clouds, but at far greater density.

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the ...