Today, the dwarf planet Pluto orbits the sun from the edge of our solar system and its surface temperature is an inhospitable negative 378 to negative 396 degrees Fahrenheit. But a new study suggests ...

The big question is: what exactly did New Horizons spot and discover as it flew through the Pluto System? Today, in the space world, let’s uncover Pluto’s secrets. Pluto was the last of the “classic” ...

CAPE CANAVERAL, FL -- Come Tuesday, Clyde Tombaugh will pass within 7,800 miles of the icy world he discovered 85 years ago. His ashes are flying on NASA's New Horizons spacecraft on humanity's first ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...