Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's atmosphere, while at the same time giving methane and other organic ...

Pluto was demoted to dwarf planet status in 2006, but some researchers say the International Astronomical Union made the wrong call. It has been more than a decade since the International Astronomical ...

Pluto lost its title as our ninth planet nearly a decade ago, not long after Nasa launched a 3billion-mile mission to the celestial body that reached its destination this week, and not nearly enough ...

When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by various geological processes — hinting that an ocean may have played a role in the ...

SCOTS may be able to catch a glimpse of Pluto this week as it reaches peak brightness. The dwarf planet is set to be at its "best and brightest moment of the year", according to National Geographic.

For decades, Pluto was our solar system's ninth planet. This video explains the scientific journey that led to its ...

Few subjects excite the arcane world of astronomy more than the status of Pluto. In 2006 the governing body of astronomy, the International Astronomical Union (IAU), downgraded Pluto from a planet to ...

A dwarf planet called Makemake far beyond Pluto has just become the latest space celebrity, with an orbiting companion of it spotted for the first time. Beyond Pluto lies a dwarf planet called ...