Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

Pluto, once considered the ninth planet, lies over 6 billion kilometers from Earth, making it one of the most difficult ...

Traditional views hold that Pluto formed in the cold Kuiper Belt, gradually accumulating ice and rock. Over the long ages, the decay of radioactive elements within the rocks released heat, gradually ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and ...

On Episode 176 of This Week In Space, Rod Pyle and and Tariq Malik are joined by Alan Stern to talk about what's next in deep ...

Times Scientists Created Astonishing New States of Matter: <a href=" ► 25 Strangest Things Scientists Have Discovered In ...

Preface: Inside the farthest exploration in history -- Introduction: Out of lock -- Dreams of a grand tour -- The Pluto underground -- Ten years in the wilderness -- The undead -- New Horizons at last ...

Twenty-Seven Years and Three Billion Miles -- A New Planet -- Gaps -- "With the Tip of a Pen" -- Post-Discovery Controversies -- The Search for Planet X -- Clyde's Planet -- Planetary Astronomy -- ...

First, let’s compare the orbital characteristics of Pluto with those of other planets. Pluto has an orbital eccentricity (the degree to which its orbit deviates from a perfect circle) of 0.25, while ...