Titan Ethane Still Missing, and Other Planetary Puzzles
May 7, 2016
We update the problem of Titan's missing ethane and other challenges to billions of years.
Tiny Enceladus Beats Saturn in Plasma Output
February 17, 2016
An astonishing case of the tail wagging the dog: tiny moon is major source of plasma in Saturn's magnetosphere.
Updates from Outer Planets
January 9, 2016
Let's review some of the latest news from missions to the outer planets.
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?
Astrobiology: The Joy of Being Wrong
August 18, 2015
An astrobiologist looks forward to the day when everything he says is totally wrong.
Planets Defy Bottom-Up Assembly
August 15, 2015
As much as they want to imagine planets forming from dust, secular astronomers run into insurmountable difficulties.
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.
Comet Lander Working, But Not Optimal
November 13, 2014
Rosetta's Philae lander hopped twice before landing in the shade in a tilted position, but the instruments are working.
Of Planets and People
September 29, 2014
Here's a quick tour of the planets to see what's newsworthy.
Planets Don't Fit Evolutionary Models
September 8, 2014
Secular planetary scientists are surprised by almost every object they observe in the solar system. Their models cannot reproduce our system of planets.
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.
Io Volcanoes Go Hyperactive
August 7, 2014
The volcanoes on Jupiter's moon are bursting out at record rates, and nobody knows why. Is it the new normal?
Every Planet Surprises Secular Astronomers, III: Formation Theories
May 4, 2014
"Surprise" or "puzzling" are the most common words in news reports about bodies in the solar system. Here are recent examples that discuss the origin of planets.