If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

"It's like trying to spot a fish by looking for ripples in a pond, rather than trying to see the fish itself." ...

"This study suggests that for every three stars, there is likely at least one super-Earth with a Jupiter-like orbital period, ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

An international team of astronomers has found that super-Earth exoplanets are far more common across the universe than once ...

If Earth had massive rings like Saturn, our sky, weather, tides, and even life could be dramatically different. Scientists ...

A groundbreaking new study suggests that super-Earth exoplanets—rocky planets larger than Earth but smaller than Neptune—may ...

Our sun is wobbling, and this has a huge impact upon the regularity of many of Earth's meteor showers, according to a new ...

Researchers recently searched for deltas on Saturn’s largest moon, Titan, but came up empty. While Titan features rivers and ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...