Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

Astronomers are welcoming the newest and most distant object in the solar system – a dwarf planet orbiting more than 100 times further from the Sun than Earth. And because its discoverers aren ...

So far, everything about this seems pretty normal. Things got weird, however, when the researchers looked into how distant the ring was from the dwarf planet: 7.4 times the planet's radius, or ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

All 19 detections of the dwarf planet 2017 OF201, from August 2011 to October 2018. Credit... Cheng et al., ... coming as close as 4.2 billion miles and moving as far out as 151 billion miles.

The tiny planet is called 2018 VG18 — later nicknamed "Farout" by the team that discovered it — and it's about 3.5 as far away as Pluto, some 18 billion kilometers (11.2 billion miles) away.

New Dwarf Planet Found Far beyond Pluto. ... led to Pluto's controversial reclassification as a dwarf planet. Astronomers are still working out the details of 2015 RR245's highly elliptical orbit, ...

Newly Discovered Dwarf Planet Hints at 'Super Earth' in Far Reaches of Solar System. ... With 2012 VP113's discovery, Sheppard is confident that there are more planet-like objects out there.

Astronomers searching for the faintest glimmers of light beyond distant Pluto say they’ve discovered a new dwarf planet – and that this planetoid’s movements hint that an invisible giant ...

Finding a major new planet would be big news. While dwarf planets like "Sedna" haven't exactly become household names, ... out beyond in the very far distant solar system." ...