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Titan Ethane Still Missing, and Other Planetary Puzzles

We update the problem of Titan's missing ethane and other challenges to billions of years.
The geyser plumes of Enceladus can be seen from long distances

Tiny Enceladus Beats Saturn in Plasma Output

An astonishing case of the tail wagging the dog: tiny moon is major source of plasma in Saturn's magnetosphere.

Updates from Outer Planets

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

New Pluto Images Even More Perplexing

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

Planet Recipe Cooked Up

Just add pebbles, stir, and get a planet. Is it real science, or just a game show?

Astrobiology: The Joy of Being Wrong

An astrobiologist looks forward to the day when everything he says is totally wrong.

Planets Defy Bottom-Up Assembly

As much as they want to imagine planets forming from dust, secular astronomers run into insurmountable difficulties.

Moon Origin Models Require Cheating

You can't get Earth's moon from a planetary collision without quasi-miraculous tweaks to the models.

It's Curtains for Enceladus

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

Rosetta's Philae lander hopped twice before landing in the shade in a tilted position, but the instruments are working.

Of Planets and People

Here's a quick tour of the planets to see what's newsworthy.

Planets Don't Fit Evolutionary Models

Secular planetary scientists are surprised by almost every object they observe in the solar system. Their models cannot reproduce our system of planets.
Triton Neptune montage

Active Moon Triton Revisited

25 years ago today, Voyager 2 flew by Triton, a moon of Neptune, astonishing scientists with its active geology.

Io Volcanoes Go Hyperactive

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

"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.
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