A newly found icy object, Ammonite, may be a 4-billion-year-old fossil from the Solar System’s edge—and it’s casting doubt on ...

Astronomers have hoped for the existence of Planet Nine for years. Things were looking promising, but this discovery might ...

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

Researchers just got a step closer to understanding the origins of our solar system, with the discovery of an object orbiting ...

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

In 2003, NASA-funded researchers spotted what was then the most distant object discovered in our Solar System. The dwarf ...

Scientists say they have found a mysterious 'tiny world' in our solar system. Apparently, the Subaru Telescope at the Mauna Kea Observatory in Hawaii has uncovered there's a new 380-kilometer world ...

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 ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

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

The discovery was made by astronomers using the Subaru Telescope, which is situated atop a dormant volcano in Hawaii.