Astrum explores everything NASA's New Horizons saw and discovered in the Kuiper Belt around Pluto, Charon and Arrokoth (Ultima Thule).

If you stood on Pluto's surface, the Sun would merely appear to be a very bright star. Although previous images showed that something was happening on Pluto, with an average temperature of -240C ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

The result? A patchy, pixelated sphere just 12 pixels wide. Even from these images, Pluto seemed pretty intriguing. The light and dark pixels seemed to suggest geological or atmospheric activity.

An curved arrow pointing right. NASA's New Horizons probe flew past Pluto last July, and it took the most detailed images of the planet that have ever been seen. NASA just released some of the ...

Images and data have been flowing in since NASA's epic New Horizons Pluto flyby on Tuesday morning, and the latest image released shows an exaggerated color map of Pluto and its moon Charon.

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

Pluto was discovered in 1930 by Clyde Tombaugh ... This "blinking" between images allowed the astronomer to note tiny differences between the photos and pick up movement. Tombaugh spent tedious ...

Pluto, discovered in 1930 ... This "blinking" between images allowed the astronomer to note tiny differences between the photos and pick up movement. Tombaugh spent tedious months in the unheated ...