Far beyond the orbit of Neptune, in the cold outer reaches of the solar system, circles one of the most consequential small worlds ever found. Eris is a dwarf planet nearly the size of Pluto but ...

Astronomers have accurately measured the diameter of the faraway dwarf planet Eris for the first time by catching it as it passed in front of a faint star. This event was seen at the end of 2010 by ...

Explore Pluto's reclassification as a dwarf planet and how Eris's size advantage challenges old beliefs about planetary status. Images taken in December 2005 by Brown and others with the Hubble Space ...

When compiling my notes, I add icons to the celestial bodies and sensitive points used in horoscopes. Since I have added some new ones, I would like to delve into them starting with the dwarf planets.

Add Yahoo as a preferred source to see more of our stories on Google. On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers discover potential dwarf planet 2017 OF201 beyond Neptune. (photo credit: Sihao Cheng et al) The researchers said 2017 ...