Eris is the largest known dwarf planet in the solar system. It is a trans-Neptunian object (TNO), orbiting the Sun in a region of space known as the scattered disc, just beyond the Kuiper belt ...

Eris is about the size of Pluto but around 50% farther from the sun. The discovery of Eris in the Kuiper Belt beyond Neptune in 2005 prompted the debate that ultimately reclassified Pluto as a dwarf ...

Eris is the largest dwarf planet in the solar system, larger than Pluto, and orbits at an average distance of 6,289,000,000 miles away from the sun, about 68 times further out than the Earth.

January 5, 2005, is an astronomical anniversary that is not really marked but should be. It saw the discovery of dwarf planet ...

According to Greek mythology, the goddess Eris was so miffed at being left off the guest list of a banquet of the gods that she stirred up the Trojan War. Disputed Dwarf Planet Named After ...

The dwarf planet Eris, named for the Greek goddess of strife, could also bring down the most popular explanations for dark matter and dark energy. Many galaxies appear to have stronger gravity ...

While Eris is roughly the same size as Pluto and Makemake is about the same size as Pluto’s moon, Charon, both dwarf planets are far beyond even Pluto’s icy corner of the Solar System.

Icy rocks in the outer solar system might have unexpected subsurface oceans. Eris and Makemake are both dwarf planets in the Kuiper belt – the ring of frozen objects that encircles our solar ...

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.