Kuiper Belt May Be Much Larger than Previously Estimated

New measurements by NASA’s New Horizons spacecraft show higher than model-predicted levels of interstellar dust as the spacecraft approaches the putative outer edge of the Kuiper Belt.

NASA's New Horizons Reaches a Rare Space Milestone

On April 17 New Horizons reached a rare deep-space milepost - 50 astronomical units from the Sun, or 50 times farther from the Sun than Earth is. New Horizons is just the fifth spacecraft to reach this great distance.

Humanity’s first-ever Kuiper Belt rendezvous

A fresh image from NASA’s New Horizons spacecraft released Tuesday showed the mission’s distant flyby target a billion miles beyond Pluto — nicknamed Ultima Thule — has an elongated shape.

New Horizons Just Set a Record for Taking the Furthest Photographs

NASA’s New Horizons spacecraft, now 3.79 billion miles from Earth, snapped these images of Kuiper Belt Objects. They’re the furthest images ever taken away from Earth.

Pluto may have a 60 mile deep liquid water ocean

A prior study demonstrated that Pluto's center is sufficiently warm to bolster a fluid water sea, and now we've discovered that it may be immense - no less than 100 km (62 miles) profound.

It Looks Like Pluto Has a Liquid Water Ocean

A modeling paper published this week in Geophysical Research Letters offers a simple but fascinating explanation: partial freezing within a subsurface, liquid water ocean.

Pluto: Impact craters indicate heart-shaped Sputnik Planum is only 10 million years old

Pluto's heart-shaped Sputnik Planum region is only 10 million years old — far younger than the rest of the dwarf planet, according to a new study.

The Space Review: Delayed gratification: early results from the New Horizons Pluto flyby

For decades, Alan Stern talked about how important it was to send a spacecraft to Pluto. Those speeches, given to any audience willing to lend an ear, helped build up support for a mission to what was once classified the ninth planet, maintain support once NASA agreed to fly a mission after previous efforts foundered, and to retain interest once New Horizons was on its long cruise to Pluto.

Dwarf planet mysteries beckon to New Horizons

(PhysOrg.com) -- At this very moment one of the fastest spacecraft ever launched -- NASA