Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

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

The Solar System is a vast and mysterious realm, filled with planets, moons, asteroids, and icy bodies waiting to be ...

In the remote outer reaches of planetary systems, far beyond the orbit of known planets, enormous and mysterious worlds silently loop around their stars. Some drift as far as 10,000 times the ...

Meaning, it moves more slowly than other planets. When an outer planet changes signs, as Neptune is for the first time in 14 years, it brings change to the very fabric of reality itself.

The researchers found that a single Earth-scale planet, weighing somewhere between 1.5 and three times Earth 's mass, may lurk in the outer solar system, living at an orbit between 250 and 500 AU.

Astronomers have discovered a bizarre object in the outer solar system, 2020 VN40, that dances to Neptune’s gravitational beat in a never-before-seen rhythm. It’s the first of its kind, orbiting the ...

Encountering Neptune in 1989, NASA's Voyager mission completed humankind's first close-up exploration of the four giant outer planets of our solar system. Collectively, since their launch in 1977 ...

However, when an outer planet like Neptune or Uranus stations retrograde, the effects aren’t typically as noticeable, since these planets are further away from the sun and from Earth.

The team has named the celestial body 2017 OF201. Researchers say a new planet was discovered beyond Neptune. (NASA/JPL-Caltech/Sihao Cheng et al, Jiaxuan Li and Sihao Cheng/CNN/CNN Newsource) ...