Should the government fleece taxpayers again for a project with almost zero chance for success? Consider two "Richter scales" that should inform hopes.
We often hear exciting news about 'habitable planets' that might have life, or at least the 'building blocks of life.' Are these reports based on sound thinking about the requirements?
Geophysicists are still puzzling over how the earth's magnetic field and Van Allen radiation belts protect the surface from deadly particles in the solar wind.
Old-earth belief tries to paper over a disturbing fact with speculative models, but 160 years of measurements show the strength of our planet's magnetic field is dropping fast.