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eris dwarf planet

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Meet Mike Brown: Pluto killer and the man who brought us Planet 9 - ‎Feb 9, 2016‎
In 2003, Brown discovered Eris, a body beyond the orbit of Pluto. Once it became clear that there were many bodies similar to Pluto and Eris at the outer edges of our solar system, the International Astronomical Union reclassified Pluto as a dwarf planet.

Vesta rules the February dusk skies

Phys.Org - ‎22 hours ago‎
It then enjoyed a very brief six month resurgence as a planet in 2006 along with Ceres and Eris (nee Xena) before the International Astronomical Union demoted the lot along with Pluto to the realm of the dwarf planets. Such are the whims of the universe.

PA announces new regulations on methane emissions; Astronomers have found evidence of ninth planet

Boulder Weekly - ‎Feb 6, 2016‎
Brown is also known for his work in getting Pluto demoted from a planet to dwarf planet on account of its size. His early work in identifying small worlds in the outer solar system (and the discovery of Eris, another dwarf planet originally believed to ...
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The long hunt for new objects in our expanding solar system

Phys.Org - ‎Feb 4, 2016‎
Artist's impression: Looking back 12.9-billion km towards the sun and the inner solar system from Sedna, one of the recently discovered minor planets in the Kuiper belt.

How Many Moons Does Each Planet Have?

The Observer Star - ‎Feb 8, 2016‎
... Shakespeare and Alexander Pope. Five are well known; Titania, Oberon, Miranda, Ariel, Umbriel. Neptune: 14 moons, the most massive by far being Triton.

How 'planety' is Planet Nine?

Mail & Guardian Online - ‎Jan 30, 2016‎
In 2005, Brown's team discovered Eris, a dwarf planet orbiting beyond Neptune. It was much larger than Pluto, and resulted in an International Astronomical Union overhaul of the definition of “planet”.
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New planets and new questions about extraterrestrial life - ‎Feb 2, 2016‎
Still, it came as a minor shock in 2005 that the one named Eris was in fact, more massive than Pluto. When astronomers created the new "dwarf planet" category for Pluto, Eris, and a few others, many felt our planetary system was under assault, and ...