After our team discovered Pluto’s small moons, we realized impacts on them might generate ejecta that gets into orbit around Pluto, creating rings around the planet. Rings have so far been discovered ...

The moons of Pluto, and a potential set of rings, may create dangerous debris zones for a NASA spacecraft currently speeding toward the distant world, researchers say. Scientists are now designing ...

In a paper published today in Nature, a team of U.S. scientists led by Dr. S. Alan Stern of Southwest Research Institute (SwRI), concludes that two newly discovered small moons of Pluto were very ...

The two moons discovered around Pluto last year were likely formed from the same giant impact that created the planet’s much larger satellite, Charon, scientists say. The idea suggests that other ...

NASA’s New Horizons spacecraft is now almost seven years into its 9.5-year journey across the solar system to explore Pluto and its system of moons. Just over two years from now, in January 2015, New ...

Ringed dwarf Pluto may have lost its former status as a planet, but a new study shows the tiny frozen world at the edge of the solar system may have gained a ring. Rings have become a key feature of ...

Until recently, the only ring in the Solar System was Saturn’s. But in 1960s and 70s, astronomers discovered rings around Uranus and Neptune. Meanwhile, the Voyager 1spacecraft sent back images of ...

Faint, icy rings may periodically appear around Pluto when small space rocks smash into its two recently discovered moons, new research suggests. NASA’s New Horizons spacecraft, currently en route to ...

The twomoons discovered around Pluto last year were likely formed from the same giantimpact that created the planet's much larger satellite, Charon, scientistssay. The ideasuggests that other Kuiper ...