For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

Oumuamua may not be as unusual as we thought. As our Solar System makes its 230 million-year orbit around the outer edges of the Milky Way galaxy, it occasionally passes by bits of cosmic jetsam ...

New simulations reveal that around 1 million "macroscopic" objects from our closest stellar neighbors, the Alpha Centauri ...

Doing the math, Sheppard realized this could very well be the most distant thing ever seen in our solar system. V774104 is "three times farther than Pluto is from the sun," he says. Enlarge this image ...

However, some researchers estimate that there are between 1,000 and 10,000 of these objects in the solar system at any one time, according to Live Science's sister site Space.com.

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

In January 2018, scientists gazing out beyond the known objects of the Solar System spotted something new: A small object, seemingly bound in orbit around the Sun.Scientists nicknamed this speck ...

With 3.2 billion pixels and a decade-long search, the Rubin Observatory will reveal what’s been hiding in plain sight.

Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' Comments (6) When you purchase through links on our site, we may earn an affiliate commission.

The most distant object yet discovered in our Solar System, Farfarout is 132 astronomical units from the Sun, which is 132 times farther from the Sun than Earth is.

A Big Year in Graph Theory. If there is one area of math that was particularly fruitful in 2023, it’s graph theory. One of the biggest mathematical discoveries of the past year was the proof of a new, ...