If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...

January's sky brings a planet parade, Mars opposition, and the Quadrantid meteor shower. Enjoy Venus and Saturn's close ...

Astronomers are on the hunt for a mysterious ninth planet, known as Planet Nine, which could change our understanding of the solar system. Is this hidden world real, or just a myth?

you might remember a time when we thought there were nine planets in our solar system. Our order of the solar system mnemonics were forever ruined when poor Pluto was unceremoniously booted out of ...

Pluto has had a tough couple of decades. Formerly the ninth planet in our solar system, Pluto was demoted in 2006 to a “dwarf planet.” Only 1,400 miles wide, about half the width of the lower ...

Since the fascinating events surrounding its discovery, it has helped increase our understanding of the origin and evolution of the Solar System ... in science by discussing Pluto's recent ...

The spacecraft, located more than 24 billion kilometres away, was feared lost to the cosmic ocean after decades of travel. But, as Andrew Griffins writes, thanks to a daring feat of human ingenuity ...

TNOs are small bodies, or 'planetesimals,' orbiting the sun beyond Pluto. They never accreted into planets ... "This supports our understanding of the available material that helped form outer solar ...