More problems plagued the planet Pluto as it has suffered a further humiliation following its 2006 ejection from the league of planets - official demotion to "second biggest dwarf planet" status.
The bad news is that Pluto is actually smaller than recently-discovered Eris, Reuters reports. More exactly, Eris is 27 per cent more massive than the former planet, according to calculations by Michael Brown and Emily Schaller of the California Institute of Technology.
The pair used data from the Hubble Space Telescope and the Keck Observatory in Hawaii to deliver this second blow to the lonely distant body. Although scientists had already determined that Eris's diameter (1,500 miles) exceeded that of Pluto (1,400 miles), they hadn't determined its mass.
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