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First Pluto Papers Published

Planetary scientists have published their first official findings about the 9th planet (or dwarf planet), Pluto.

Solar System Is Weird Only if It Is Old

To someone who believes the solar system is billions of years old, no wonder its contents look weird.

Pluto, Charon Details Trickle In

Happy Leap Year! New photos from Pluto and Charon continue to show enigmatic features.

Surprising Youth in the Solar System

Four solar system objects in the news look young, not billions of years old.

Updates from Outer Planets

Let's review some of the latest news from missions to the outer planets.

Pluto May Be Erupting

Two mountains that look like giant volcanoes hint at current activity on Pluto.

Pounding Headaches for Solar System Dates

It's hard to tell when things crashed into each other.

Pluto Shock Rebounds

The first research paper from the New Horizons team focuses and amplifies the shock waves coming from the first images in July.

New Pluto Images Even More Perplexing

Pluto has terrain like no other world, leaving scientists perplexed; Enceladus' activity is also inexplicable for "geologic time".

"Overdose of Awesomeness": New Pluto Images Show Unpredicted Activity

More images have been released from New Horizons' July 14 flyby of Pluto, showing youthful mountains, glaciers and an escaping atmosphere.

Ski Pluto: Glaciers Are Flowing

Planetary scientists are dumbfounded by more evidence of youth at Pluto, both on the surface and in the atmosphere.

Is Pluto Another Geyser World? "Shocking" Images Baffle Scientists

In addition to featureless plains, Pluto may even sport active geysers—with no recourse to tidal heating to power them.

Pluto Is Young

The New Horizons science team is stunned by surface features on Pluto and its large moon Charon that cannot be billions of years old.

Pluto Inbound Image Stuns Scientists

It's not a featureless orb: Pluto has a whale and a heart. A "complex and nuanced" surface shows that Pluto and its large moon Charon had a history.

Where Are the Earth's Impact Craters?

The number of impact craters on Earth is almost negligible compared to Mars and the moon. Can erosion explain this?
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