This icy world, temporarily named 2017 OF201, could be a distant cousin of Pluto — and scientists mean "distant" quite literally. At its farthest point, it's more than 1,600 times the distance ...

The New Horizons mission to Pluto has ... Science Space Solar System Pluto Beyond Pluto: Meet The New Horizons ... Five questions about NASA’s plans to visit an alien world in 2069 Five ...

Nearly two years after its historic encounter with the dwarf planet Pluto, NASA's New Horizons spacecraft is getting ready for its next big adventure in the icy outskirts of the solar system. Now ...

Before the Pluto flyby, the New Horizons mission had been billed as this generation’s version of Voyager. It would be the first time many of us would get to see a familiar world come into focus.

The constellation of Sagittarius, the Archer, is a common sight in the winter sky, easily recognizable by the "teapot" asterism that makes up its front half.

After giving the world an unprecedented close-up of Pluto, Nasa’s New Horizons mission is hurtling towards an altogether more unknown target: MU69.Read more: Mystery planets and strange orbits ...

Astronomers have found a large world of ice and rock circling the Sun beyond the most distant planet, Pluto. Preliminary observations suggest it may be up to 1,800km (1,120 miles) across, making it ...

New Horizons traveled over 3 billion miles and almost 10 years until it finally reached Pluto. If you think that's impressive, get ready for the spacecraft's next target. New Horizons is going ...

The New Horizons spacecraft was launched from Earth 13 years ago and flew by Pluto in 2015. The craft will come three times closer to Ultima Thule than it did Pluto, according to NASA.

Out beyond Pluto, a large, massive world has been found that may be our Solar System's newest dwarf planet. But its large eccentricity might mean something more.

Scientists have discovered a new dwarf planet candidate far beyond Pluto in the solar system. Its existence could mean there's no Planet 9.