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 probing mysteries of the Universe.

There, nitrogen and methane have turned into ice, covering the entire planet. Yet in this icy landscape, scientists speculate that there may be a liquid ocean beneath the ice, and this ocean might ...

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 ...

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 ...

Ohio State University engineers are developing a centrifugal nuclear thermal rocket, promising to double engine efficiency ...

Planetary scientist Kelsi Singer was an undergraduate in 2006 when a spunky spacecraft launched with an ambitious goal: to fly by Pluto. It would take nearly a decade for the New Horizons probe to ...

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 -- ...

Pluto’s heart-shaped feature, known as Tombaugh Regio, has captivated scientists and the public alike since its discovery. This striking geological formation offers insights into the unique ...