...who christened the dwarf planet _ now officially called Eris _ said Thursday...tiny world deserved planetary status. Pluto and Eris have now been assigned to a new class of dwarf planets that the...do is discover a dwarf planet. (END OPTIONAL TRIM...when he ...

...demise has been given a name: Eris. The christening of Eris, named after the Greek goddess of chaos and strife...controversial guidelines. Since its discovery last year, Eris ignited a debate about what constitutes a planet. Astronomers were split over how to classify the object...definition. Some ...

...considered a possible 10th planet. We're learning a lot more about Eris from the orbit of its moon. Eris is way out there in the...remember Pluto? It used to be a planet until astronomers demoted...new category they created, dwarf planet. The discovery of Eris, which is ...

The Voice of America issued the following story: The dwarf planet that led to Pluto's recent cosmic demotion has been given...icy body on the outskirts of our solar system 136199 Eris, or just Eris for short. The discovery of Eris last year, and its striking similarity to Pluto, forced renewed ...

...demise has been given a name: Eris. The christening of Eris, after the Greek goddess of chaos and strife, was announced...controversial guidelines. Since its discovery last year, Eris, which had been known as 2003 UB313, ignited a debate about what constitutes a planet. Astronomers were split over ...

...system and led to Pluto's demise as a planet has been named Eris. The name of the Greek goddess of...International Astronomical Union yesterday. Dwarf planet Eris, which was discovered last year...solar system has been cut to eight planets.

...large enough, Pluto was downgraded from planet to dwarf planet, leaving eight official planets in the solar system. In 1998, the Northern Maine Museum...school students to help build models of the then-nine planets. Built on a scale of one mile to 93 million miles (the average distance from ...

...most massive known dwarf planet. Eris, which got Pluto demoted...created the category of dwarf planet for objects including Eris and Pluto. At the...the largest known dwarf planet. Then, astronomers found Dysnomia, Eris' satellite, and they...

...who christened the dwarf planet--now officially called Eris--said Thursday that...tiny world deserved planetary status. Pluto and Eris have now been assigned to a new class of dwarf planets that the...do is discover a dwarf planet. Brown said that back when he ...

One dwarf planet received a new name on Thursday from the International Astronomical Union, and another, Pluto, has a new number. Eris is the new permanent name for the solar body formerly...and that had been designated 2003 UB313, chose the name Eris, after the goddess of discord and strife in Greek ...