The Spin on Planets
February 18, 2014
As the orbs whirl around Sol, human understanding of our space neighborhood rises and falls.
Europa Joins the Geyser Club
December 12, 2013
Hints of watery plumes have been detected on Europa – like Enceladus, at its south pole, too.
Extreme Speculation Presented as Science
December 11, 2013
Things no one could possibly ever know are being reported by science journals and news sites as things worthy of scientific faith.
NASA Astrobiologists Draw Comics on the Job
November 6, 2013
A federally-funded NASA website about astrobiology has just launched an evolutionary comic strip. Is this an appropriate use of taxpayer funds?
Scientists Dodge Youthfulness of Saturn Moon Enceladus
August 7, 2013
Planetary scientists have figured out that the geysers of Enceladus vary during its orbit, but seem oddly silent about the question of how long the little moon could remain so active.
Astronomy Grab Bag
December 29, 2012
For year's end, here's a clean-out of astronomy articles—from planetary science to cosmology—to motivate further inquiry.
Planets and Moons Beneath the Surface
September 29, 2012
Can science peel back the surfaces of objects to see what's underneath? Can they go under the observations to find the explanations?
Earth’s Twin: What Does “Potentially Habitable” Mean?
December 5, 2011
The Kepler spacecraft has found dozens of “potentially habitable” planets around other stars, but this week announced one that some news sources are calling “Earth’s twin.”
Europa Plus Water Does Not Equal Life
November 18, 2011
NASA gave one of its high-profile press releases this week to dazzle reporters: Europa, the icy moon of Jupiter, may have large lakes of liquid water under its icy shell, closer to the surface than the deep ocean long believed to exist miles down. The curious domes rising above the ice seem to indicate heating that Would the reporters resist the temptation to speculate about life?