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 ...

The trouble-making object that forced astronomers to reconsider Pluto’s planetary status has finally received its official name — Eris. The name, taken from a Greek goddess of discord and ...

Mike Brown is an astronomer, and in my opinion is mainly responsible for kick-starting the demotion of Pluto as a planet – he and his team found Eris, an object in the outer solar system that ...

Aptly named after the Greek goddess of conflict, the icy dwarf planet, Eris, has rattled the general model of our solar system. The object was discovered by astronomer Mike Brown of Caltech in the ...

Eris' moon also received a formal name: Dysnomia, the daughter of Eris known as the spirit of lawlessness. Dysnomia is the object formerly known by the code name Gabrielle.

Scientists followed up their finding by looking at the object through the University of Hawaii’s Near-Infrared Echellette Spectrometer telescope, and was given the name CWISE J1249.

Cosmos 482, launched into space by the Soviet Union in 1972 with a destination of Venus, malfunctioned and has been in Earth's orbit since.

Here’s the latest reminder that space is really, really big. At a cool billion light years across, a distant complex of galaxy superclusters may be the largest structure yet found in the cosmos.

NASA's long-lived Hubble Space Telescope captured vivid bright clumps moving through the cosmos at some 1,000 light years from Earth. The space agency called these objects clear "smoking gun ...

A piece of space junk called Cosmos 482 is unlikely to pose a threat to people or property. But space experts say it highlights the need to stay vigilant.

Strangeweather on the icy dwarf planet Eris could be causing changes that scientistsare now seeing at the methane-ice surface of this distant object in our solarsystem.