Geological Processes Can Be Rapid
August 27, 2019
For those trained to think in millions of years, these geological processes should sound surprising.
Europa May Be Another Geyser Moon
May 15, 2018
A re-assessment of data from the Galileo spacecraft appears to confirm suspected eruptions from the surface of Europa, Jupiter's icy moon.
Pluto and Ceres: Young Dwarf Planets
December 28, 2016
With all its data downloaded, New Horizons continues to surprise astronomers with evidence of active geology and youth at Pluto.
Activity on Planets Suggests Youth
November 11, 2016
Can these processes really have gone on for billions of years?
Underground Oceans Can't Last Forever
June 29, 2016
If Pluto and Enceladus have oceans under the crust, why are they still liquid after billions of years?
Surprising Youth in the Solar System
January 26, 2016
Four solar system objects in the news look young, not billions of years old.
Updates from Outer Planets
January 9, 2016
Let's review some of the latest news from missions to the outer planets.
Cassini Plunges Through Enceladus Geyser, and Other Saturn News
October 29, 2015
Yesterday's daring plunge through a plume of an Enceladus geyser is the highlight of recent Saturn news.
New Pluto Images Even More Perplexing
September 25, 2015
Pluto has terrain like no other world, leaving scientists perplexed; Enceladus' activity is also inexplicable for "geologic time".
Is Pluto Another Geyser World? "Shocking" Images Baffle Scientists
July 17, 2015
In addition to featureless plains, Pluto may even sport active geysers—with no recourse to tidal heating to power them.
It's Curtains for Enceladus
May 11, 2015
The geysers of Saturn's little moon are like sheets instead of jets, spelling trouble for theories of its ancient age and possible life.
Water Worlds Tempt with Life, Not Youth
March 13, 2015
More and more planets and moons are suspected of having liquid water, but what should be the logical implications?
Lunar Impact: Major Moon Basin Was Not a Big Hit
October 8, 2014
The theory of how the largest impact basin on the moon was formed has been turned upside down.
Active Moon Triton Revisited
August 25, 2014
25 years ago today, Voyager 2 flew by Triton, a moon of Neptune, astonishing scientists with its active geology.
Enceladus Geysers Still Unexplained
July 31, 2014
The number of geysers has topped a hundred on Saturn's overactive moon. How could they be sustained for billions of years?