A new LSU research study suggests clustered pits in the Pioneer Terra region on Pluto are related to the dwarf planet's suprising robust atmosphere. The pits resemble gas pockmarks on Earth where methane seeps from the subsurface. These pits may supply atmospheric methane on Pluto.

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What does Trump make of the deal?

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"Labour markets cannot function efficiently without truthful and non-misleading information about earnings and other material terms," Christopher Mufarrige, director of the FTC's Bureau of Consumer Protection, said in announcing the deal.