US-based trio stumble on dwarf planet in solar system's outer reaches

It's an evocative idea that has long bedevilled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it.

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PARIS:

Some astronomers say the strange, clustered orbits of icy rocks beyond Neptune indicate that something big is out there, which they have dubbed "Planet Nine". Now, a US-based trio hunting this elusive world has instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

And the existence of this new kid on the block could challenge the "Planet Nine" theory, the researchers have calculated.