WASHINGTON (Reuters) - Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches.

Three notable celestial bodies are seen as lit crescents, one in the foreground takes up half the image, the second is much smaller at the top, with a shining third near the bottom right as the first ...

The small icy worlds on the edge of our solar system may be better contenders for life than we first thought, scientists have found. The dwarf planets of Eris and Makemake, situated in the Kuiper Belt ...

Though the dwarf planet Eris on the edge of the solar system is much denser than Pluto, the two frigid worlds are nearly exactly the same size, a new study finds. Astronomers accurately measured Eris' ...

The puzzling presence of a certain flavor of methane on Eris and Makemake could be hinting at their warm, watery interiors. When you purchase through links on our site, we may earn an affiliate ...

PASADENA, Calif.–Die-hard Pluto fans still seeking redemption for their demoted planet have cause for despair this week. New data shows that the dwarf planet Eris is 27 percent more massive than Pluto ...

Jan. 5 (UPI) --On this date in history: In 1914, the Ford Motor Co. increased its pay from $2.34 for a 9-hour day to $5 for 8 hours of work. It was a radical move in an attempt to better retain ...

Scientists tracked the dwarf planet Eris as it passed in front of a star, finding that it's probably about the same size as Pluto. "Whether or not you agree with the IAU's 2006 resolution on the ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...