Is Pluto a planet

Is the International Space Station the appropriate next step for humanity's exploration of space

Does the accumulation of "space debris" in Earth's orbit pose a significant threat to humans, in space and on the ground

Historic Dispute : Is Urbain Le Verrier the true discoverer of Neptune

Did life on Earth begin in the "little warm pond"

Did water once flow on the surface of Mars

Are hazards due to earthquakes in the New Madrid Seismic Zone overestimated

Historic Dispute : Are Earth's continents stationary throughout geologic time

Will a viable alternative to the internal combustion engine exist within the next decade

Will wind farms ever become an efficient, large-scale source of energy

Do the potential dangers of nanotechnology to society outweigh the potential benefits

Have technological advances in sports such as tennis, golf, and track and field supplanted the athletic achievements of the participants in those sports

Should the threat of foot-and-mouth disease be met by the destruction of all animals that might have been exposed to the virus

Are XYY males more prone to aggressive behavior than XY males

Were dinosaurs hot-blooded animals