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How to Keep the Solar System Old: Struggle and Hope

Keeping the consensus age of the solar system is vital to evolution, but observations keep getting in the way.
Pluto (color-enhanced) from New Horizons, Sept 24, 2015 release

Geologists Smash Pluto to Make it Look Old

Planetary scientists pull out their tried-and-true all-purpose explanation: impacts.

Landslides on Pluto Happened Quickly

If Pluto is really 4.6 billion years old, something happened almost instantaneously out there some time ago. In planetary science, where experts are accustomed to thinking everything is billions of years old, sudden unique events present problems. Almost everything should have settled down by now into a routine. One can certainly argue for exceptions, where […]

Young Pluto Stuns Scientists with Astonishing Maps

New color maps score high on the Wow Factor. How can this lonely dwarf planet still be active? Its moon Charon looks young, too.
Ceres

Small Planetary Bodies Unexpectedly Active

You would think things would have cooled down after 4.5 billion years. That's not what planetary scientists are observing.

Pluto and Ceres: Young Dwarf Planets

With all its data downloaded, New Horizons continues to surprise astronomers with evidence of active geology and youth at Pluto.

Lyell Loses in a Landslide

Politics is on the minds of Americans today. Landslides are turning geological votes away from Lyell's uniformitarianism toward catastrophism.

Underground Oceans Can't Last Forever

If Pluto and Enceladus have oceans under the crust, why are they still liquid after billions of years?

Pluto Has Active Geology

Convection apparently forms the polygonal cells in Sputnik Planum, a large active region on Pluto's surface.

First Pluto Papers Published

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

Pluto, Charon Details Trickle In

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

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".
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