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 ...

February 18th has been a significant date throughout history, marking a variety of events that have shaped the world. In a ...

the debate continues and some planetary scientists still call Pluto a planet. How Mrs. White built a Phoenix soul food institution and living monument to Black history This AZ airport is getting a ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

From that day forward, astronomers have officially classified Pluto as a “dwarf planet,” one of several ... the blink comparator to look at black-and-white images taken the previous month.