"This is a big step in understanding the outer solar system," team leader Rosemary Pike from the Center for Astrophysics | ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

Despite the powerful telescopes that modern astronomers have to work with, the distant reaches of the Solar System are still ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Though our solar system and the movement of its planets appear relatively sedate, there are many things that could upset the ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one day resemble our own.

The orbits of a seven-planet system discovered in Kepler Space Telescope data has been sonified. Credit: Bishop’s University / Jason Rowe / NASA Ames Research Center ...