Harvard astronomers have announced the discovery of over 100 previously undiscovered moons orbiting the planet Saturn.

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth.

Here's what to know about the short life of what was, for a single human lifetime, the solar system's smallest planet. Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the ...

A new habitable planet that orbits a sun-like star been discovered by scientists. The exoplanet, a planet outside our solar system, was originally discovered two years ago by Oxford University ...

According to the astronomers behind this newest study ... This isn’t the first time that scientists have discovered a promising planet out in the nethers of space. Previously, a planet located ...

IT'S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 weird and wonderful worlds across 4,300 planetary systems have been located.

Scientists have discovered a “super-Earth” planet that may have conditions suitable for life. The planet is outside our solar system and has a mass six times greater than that of Earth. The discovery ...

NASA has discovered a "planet-killer" blazar shooting energy toward Earth from 12.9 billion light-years away, reshaping our ...

The fastest ever winds discovered in our own Solar System occur on Neptune - only reaching as much as 1,200mph. This hellish planet is infamous for two reasons: its deadly weather and its smell.