A new lab experiment is testing a water-free solution for "space laundry" on future Mars missions.

The spread of the H1N1 flu, the "swine flu," is thought to spread from person to person through coughing or sneezing. Health officials encourage you to wash your hands often with soap and warm water.

He used a powder called Glo Germ, which, like real life germs, is invisible and spreads from surface to surface through contact. Unlike germs, however, it can be seen under a blacklight, enabling ...

It seems, therefore, that flatus can cause infection if the emitter is naked, but not if he or she is clothed. But the ...