A depiction of Eris’s rocky core and ice shell on an illustrated background from NASA. Credit: University of California - Santa Cruz A depiction of Eris’s rocky core and ice shell on an illustrated ...

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 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 ...

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 ...

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For three-quarters of a century, schoolkids learned that our solar system has nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. But things changed nearly five ...

University of California, Santa Cruz Professor of Planetary Sciences Francis Nimmo recently co-authored a Science Advances paper about the internal structure of the dwarf planet Eris. Eris is about ...