Earth's Geodynamo: An Energy Crisis
January 25, 2016
A new theory to maintain Earth's magnetic field looks like a case of special pleading to rescue a dogma.
Updates from Outer Planets
January 9, 2016
Let's review some of the latest news from missions to the outer planets.
New Earthrise Is a Stunner
December 24, 2015
Take a look at this image from a lunar orbiter on the 47th anniversary of the historic Apollo 8 "Earthrise" photo.
Stuff Geologists Think They Know Till Tomorrow
December 22, 2015
The science of geology is like quicksand, ever shifting and not rock solid.
Want Salt on Your Ceres?
December 10, 2015
Those mysterious white spots on asteroid Ceres could be outcrops of salt. How did vast amounts of salt get out there?
Tilted Planets Throw Theories Off Kilter
November 30, 2015
An example of how data can be framed as success or failure, depending on the reporter's spin.
There's No Place Like Earth
November 20, 2015
A survey of known exoplanets finds no real estate as valuable as Earth.
New Earth Ocean Theory Is All Wet
November 16, 2015
Time to rewrite the textbooks again. Earth started out wet, scientists now claim, overturning decades of dogma.
Pluto May Be Erupting
November 10, 2015
Two mountains that look like giant volcanoes hint at current activity on Pluto.
Inventing Stars, Solar Systems and Universes
October 31, 2015
Always look into the methods used when scientists speak confidently about models for making things appear out of nowhere.
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.
Entropy in Space Seen at All Scales
October 22, 2015
Entropy at all scales: clearly seen. Creation of order: not so much.
Origin-of-Life Speculation Goes Off the Rails
October 21, 2015
Astrobiologists and their accomplices in the media are finding life everywhere where it isn't or couldn't be. Time to call in the science rangers.
Pounding Headaches for Solar System Dates
October 19, 2015
It's hard to tell when things crashed into each other.
Pluto Shock Rebounds
October 16, 2015
The first research paper from the New Horizons team focuses and amplifies the shock waves coming from the first images in July.