The spotlight is bright enough to thaw even Pluto. Well, not quite, but the tiny, icy world is getting front-page, prime-time attention for its first visit by a spacecraft — NASA’s New Horizons.

This is part of a series of articles written by members of the Westfield High School Space and Astronomy Club. Their mission is to share their enthusiasm for space and astronomical events with the ...

On Aug. 24, 2006, the International Astronomical Union voted to strictly define a planet, which ultimately downgraded Pluto from the ninth planet from the sun to a dwarf planet — causing controversy ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — NASA said its New Horizons ...

When NASA’s New Horizons mission flew past Pluto in 2015, it gave humanity our first glimpse of a colossal depression on the isolated world. It's named Sputnik Planitia. Comparable in size to the ...

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 ...