Using Pluto as an example, this celestial body, once considered the ninth planet, was redefined as a dwarf planet in 2006.

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

Here, the 'ice volcano' does not erupt molten rock, but rather 'ice magma' formed from a mixture of water ice, liquid brine, ...

JWST data hints that Trappist-1e may have an atmosphere. More transits will test if this world could support liquid water. Recent observations with NASA’s advanced JWST telescope have revealed a ...

By studying the chemical composition of an odd, dying star, astronomers discovered that it had been feasting on what used to ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...

NASA says its Hubble Space Telescope has detected a white dwarf star that consumed fragments of a Pluto-like object. Space ...

It is similar in size to Earth and completes a full orbit around its star in just six days. Scientists believe that the ...

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation ...

Astronomers have detected the chemical fingerprint of a frozen, water-rich planetary fragment being devoured by a white dwarf ...