Density Can't Keep Saturn's Rings Old
February 4, 2016
Saturn's B ring is much less dense than previously thought, challenging attempts to keep it 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.
Pounding Headaches for Solar System Dates
October 19, 2015
It's hard to tell when things crashed into each other.
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".
Planet Recipe Cooked Up
August 24, 2015
Just add pebbles, stir, and get a planet. Is it real science, or just a game show?
August 8, 2015
Cassini keeps revealing puzzling phenomena in the Saturn system that challenge traditional theories and date estimates.
Pluto Is Young
July 15, 2015
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
July 14, 2015
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.
Desperately Seeking Life Beyond Earth
July 7, 2015
Earth life cannot be unique. How about you, Mars? Europa, anything? Enceladus? Comet 67P? Please break the silence!
Making Up Facts to Fit a Narrative
July 6, 2015
To be a good evolutionary scientist, write your narrative first. Then observe things. Finally, make up a model that fits the narrative.
Titan: Planetary Scientists Invent Imaginary Histories
June 15, 2015
Getting from then to now is more poetic license than demonstrable fact.
Solar System Puzzles Needing Explanation
June 11, 2015
Here are some of the latest observations that are baffling planetary scientists.
Moon Origin Models Require Cheating
June 1, 2015
You can't get Earth's moon from a planetary collision without quasi-miraculous tweaks to the models.
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.