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Pluto

Actual images of Pluto and its large moon Charon, shown to scale and with correct contrast, from New Horizon observations. Credit: NASA/JHUAPL/SwRI

Pluto may have once had huge cryovolcanic ice flows

Ice volcanoes on Pluto may have created weird, lumpy landscape.
By Phil Plait 1 year ago
Cassidy Sputnik Planitia NASA PRESS

The face of Pluto is slowly changing and now we know why

Pluto’s heart-shaped Sputnik Planitia beats with geologic activity.
By Cassidy Ward 1 year ago
Phil Plait Bad Astronomy pluto_atmosphere_backlit

We got to Pluto just in time: Its air is starting to freeze out

By Phil Plait 1 year ago

Almost 4.7 billion miles from the Sun, there is more on the horizon for the New Horizons mission

By Elizabeth Rayne 2 years ago
Artwork depicting the interstellar object ‘Oumuamua, which may be a flattened pancake of nitrogen ice. Credit: William Hartmann

Our first interstellar visitor 'Oumuamua may be an ice chunk blasted off an alien Pluto

By Phil Plait 2 years ago
Pluto's haze

Eerie blue haze on Pluto isn’t paranormal, but it is lethal poison

By Elizabeth Rayne 2 years ago
A color-enhanced mosaic of Pluto made from New Horizons images when it passed the icy world in 2015. Maybe I should make this a bumper sticker. Credit: NASA / JHUAPL / SwRI

Pluto's mountains are capped with... methane snow?

By Phil Plait 2 years ago
A mosaic of Pluto made from New Horizons images. Credit: NASA / JHUAPL / SwRI

Pluto’s far side: Exploring the backside of a tiny iceworld

By Phil Plait 3 years ago
A mosaic of Pluto made from New Horizons images. Credit: NASA / JHUAPL / SwRI

Did Pluto start hot or cold?

By Phil Plait 3 years ago
Pluto backlit by the Sun

Breathe easy: Pluto's atmosphere isn't about to collapse

By Phil Plait 3 years ago
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