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

An curved arrow pointing right. Last July, NASA's New Horizons spacecraft flew by Pluto. The event was one for the history books. Because Pluto is so far, it took time for the spacecraft to ...

Pluto is too far away from Earth to be seen with the naked eye. If you stood on Pluto's surface, the Sun would merely appear to be a very bright star. Although previous images showed that ...

Today, NASA's New Horizons team - which sent the first spacecraft in history to fly over Pluto last week - revealed the latest set of Pluto images that came with some big surprsies and new mysteries.

FLAGSTAFF, Az. – Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating ...

At this very moment, NASA's New Horizons spacecraft is more than 3 billion miles from Earth. To put that into perspective, think about how mind-numbingly far the Sun is from Earth. Then multiply ...