The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Scientists believe our solar system may be hiding a secret world — and it’s not the famous Planet X :eyes: A new study suggests an Earth-sized rocky planet, nicknamed Planet Y, could be lurking in the ...

A team of researchers has pinpointed a key region in the early Solar System where the building blocks of planets, called planetesimals, formed over millions of years. The discovery, published in The ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

A new study published in The Astrophysical Journal has traced six chemically distinct families of the Solar System's oldest meteorites to a single ring-shaped dust trap just beyond Jupiter's orbit — ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our solar system that could support life in some form.