Project Proxima

A trip to Proxima Centauri @proximaspace

proxima logo art

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an image of Eris

Eris is the most massive dwarf planet known in the Solar System, and the ninth most massive body known to directly orbit the Sun. It is estimated to be 2,326 kilometers in diameter, and 27% more massive than Pluto, or about 0.27% of the mass of Earth.

Eris was discovered in January 2005 by a Palomar Observatory-based team led by Mike Brown, and its identity was verified later that year. It is a trans-Neptunian object and a member of a high-eccentricity population known as the scattered disk. It has one known moon, Dysnomia. As of 2014, its distance from the Sun is 96.4 astronomical units roughly three times that of Pluto. With the exception of some comets, Eris and Dysnomia are currently the most distant known natural objects in the Solar System.