This artist's impression shows the distant dwarf planet ... rendering of Eris, announced in July 2005 by Mike Brown of Caltech. It is more massive than Pluto. The sun is in the background.

Eris passed in front of a faint background star from Earth's perspective. This event, known as an occultation, provided a rare opportunity for astronomers to learn about the dwarf planet.

(Above: An artist concept of the dwarf planet Eris. The sun is the small star ... object which had changed position against the stellar background. Follow-up observations determined the object ...

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 ...

The dwarf planet Eris is one ... researchers were able to observe Eris and collect the new data about it by predicting when it would pass in front of a faint background star.

An artist's rendering of the dwarf planet Eris | ESO/L. Calçada and Nick Risinger (skysurvey.org) // CC BY 4.0 Far beyond the orbit of Pluto exists a celestial body that’s a little smaller ...

WASHINGTON, Nov 15 (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 ...