Roughly three times farther away than Pluto, the new planet is the most distant known object in the solar system, near-infrared spectra show signs of methane ice on the planet's surface, indicating that the planet has not been warmed significantly since the birth of the solar system some 4.5 billion years ago.
A) Roughly three times farther away than Pluto, the new planet is the most distant known object in the solar system, near-infrared spectra show signs of methane ice on the planet's surface,
...
A) Roughly three times farther away than Pluto, the new planet is the most distant known object in the solar system, near-infrared spectra show signs of methane ice on the planet's surface,
...

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