Pluto’s most recognizable feature is the giant, heart-shaped area in its southern hemisphere. NASA’s New Horizons mission camera only photographed this Valentine shape in 2015. Where it came from and ...

When NASA's New Horizons spacecraft flew by Pluto in 2015, it returned images with a sweet surprise: a heart-shaped formation dominating the surface of the dwarf planet. Now, researchers believe ...

A huge heart-shaped feature on the surface of Pluto has intrigued astronomers since NASA’s New Horizons spacecraft captured it in a 2015 image. Now, researchers think they have solved the mystery of ...

The mystery of how Pluto got a giant heart-shaped feature on its surface has finally been solved by an international team of astrophysicists. The team is the first to successfully reproduce the ...